Greenbaum, Sidney
An Introduction to English grammar / Sidney Greenbaum
Longman , 1991
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Quirk, Randolph
A university grammar of English / Randolph Quirk and Sidney Greenbaum
English Language Book Society/Longman, 1989
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Gramley, Stephan
A survey of modern English
Routledge , 1992
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Basic skill in English : green level
edited by Joy Littell
McDougal Littell, 1985
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Huddleston, Rodney
Introduction to the grammar of English
Cambridge University Press, 1984
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