GENERAL
Crystal, D. (2003) The Cambridge Encyclopedia of Language [2nd ed]. CUP.
Pinker, S. (2000) The Language Instinct [rev. ed.]. Harper Collins.
Radford, A., Atkinson, M., Britain, D., Clahsen, H. & Spencer, A. (1999), Linguistics: an Introduction. CUP.
PHONETICS
Clark, J. and Yallop, C. (1995) An Introduction to Phonetics and Phonology [2nd ed.]. Blackwell.
Ladefoged, P. (2005), A Course in Phonetics [5th ed.]. Heinle.
Ladefoged, P. & Maddieson, I. (1996) The Sounds of the World's Languages. Blackwell.
Laver, J. (1994) Principles of Phonetics. CUP.
Pickett, J. M. (1998) The Acoustics of Speech Communication: Fundamentals, Speech Perception Theory, and Technology. Needham Heights, MA: Allyn & Bacon.
PHONOLOGY
Carr, P. (1993) Phonology. Macmillan.
Kager, R. (1999) Optimality Theory. CUP.
Kenstowicz, M. (1994) Phonology in Generative Grammar. Blackwell.
McCarthy, J. (2002) A Thematic Guide to Optimality Theory. Blackwell.
MORPHOLOGY
Bauer, L. (1989) Introducing Linguistic Morphology. Edinburgh UP.
Matthews, P.H. (1991) Morphology [2nd ed.]. CUP.
Spencer, A. (1991) Morphological Theory. Blackwell.
SYNTAX
Adger, D. (2003) Core Syntax: a Minimalist Approach. Oxford: Blackwell.
Carnie, A. (2002) Syntax. A Generative Introduction. Oxford: Blackwell.
Haegeman, L. (1994) Introduction to Government and Binding Theory [2nd ed.]. Blackwell.
Hornstein, Norbert, Nuñes, Jairo, and Grohmann, Kleanthes K. (2005) Understanding minimalism. CUP.
Ouhalla, J. (1999) Introducing Transformational Grammar [2nd ed.]. Arnold.
Radford, A. (2004). Minimalist Syntax. Exploring the structure of English. CUP.
Radford, A. (1997) Syntactic Theory and the Structure of English. CUP.
Roberts, I. (1997) Comparative Syntax. London: Edward Arnold.
SEMANTICS
Allan, K. (2001) Natural Language Semantics. Blackwell.
de Swart, H. (1998) Introduction to Natural Language Semantics. CSLI Publications.
Jaszczolt, K.M.(2002) Semantics and Pragmatics: Meaning in Language and Discourse. London: Longman.
Kearns, K. (2000) Semantics. Macmillan Press.
Portner, P.H. (2005) What is Meaning? Fundamentals of Formal Semantics. Oxford: Blackwell.
PRAGMATICS
Jaszczolt, K.M. (2002) Semantics and Pragmatics: Meaning in Language and Discourse. London: Longman.
Levinson, S.C. (1983) Pragmatics. CUP.
Levinson, S.C. (2000) Presumptive Meanings: The Theory of Generalised Conversational Implicature. Cambridge, Mass.: MIT Press.
HISTORICAL LINGUISTICS
Campbell, L. (1998) Historical Linguistics: An Introduction. Edinburgh University Press.
Crowley, Terry (1998) An Introduction to Historical Linguistics [3rd ed.]. OUP.
Harris, Alice C. and Lyle Campbell. (1995) Historical syntax in cross-linguistic perspective. CUP.
Hopper, Paul J. and Elizabeth Closs Traugott. (2003) [1993]. Grammaticalization. CUP. [use 2003 ed. if possible]
Lightfoot, David. (1999) The development of language: Acquisition, change and evolution. Oxford: Blackwell.
McMahon, A. M. S. (1994) Understanding Language Change. CUP.
Trask, R. L. (1996) Historical Linguistics. Arnold.
STRUCTURE OF ENGLISH
Blake, N. ed. (1992) The Cambridge History of the English Language: Volume II, 1066-1476. CUP.
Giegerich, H. (1992) English Phonology: an Introduction. CUP.
Haegeman, L. & J. GuŽron (1998) English Grammar. Blackwell.
Hogg, R. ed. (1992) The Cambridge History of the English Language: Volume I, from the Beginnings to 1066. CUP.
Huddleston, R. English Grammar: an Outline. CUP.
Huddleston, R. (1984) Introduction to the Grammar of English. CUP.
Huddleston, R. & Pullum, G. (2002) The Cambridge Grammar of the English Language. CUP.
Lass, R. ed. (1999) The Cambridge History of the English Language: Volume III, 1476-1700. CUP.
McCawley, J. (1988) The Syntactic Phenomena of English. University of Chicago Press.
Pyles, T. & J. Algeo (1993) The Origins and Development of the English Language. Harcourt Brace.
Radford, A. (1997) Syntactic Theory and the Structure of English. CUP.
Romaine, S. ed (1997) The Cambridge History of the English Language: Volume IV, 1776-1997. CUP.