A university grammar of English
Quirk, Randolph.
Greenbaum, Sidney.
Close, R. A.(Reginald Arthur),1909-
London Longman,
1974
With suggested answers
'Based on "A Grammar of contemporary English" by Randolph Quirk, Sidney Greenbaum, Geoffrey Leech, Jan Svartvik [Harlow : Longman, 1972]'
English language