@book{38728,
	author = {Leech,Geoffrey},
	title = {A Communicative Grammer of English /},
	publisher = {Longman,},
	year = {2000.},
	address = {New York :},
	note = {Based on A grammar of
 contemporary English by Randolph Quirk, Sidney Greenbaum, Geoffrey Leech, Jan Svartvik}
}