Quirk, Randolph
A university grammar of English / Randolph Quirk and Sidney Greenbaum
English Language Book Society/Longman, 1989
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Sambrook, G.A.
English language
Longmans, Green, 1947
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English this way English Language Services.
London Collier-Macmillan 1965,
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Parrot, Martin
Grammar for English language teachers
Cambridge University Press, 2003
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Crystal, David, 1941-
English as a global language
Cambridge University Press , 2007
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