@book{3018,
	author = {Rao, A.R},
	title = {A Handbook of English usage},
	publisher = {Orient Longman Limited},
	year = {1990},
	address = {Madras},
	note = {A  Handbook of English usage is a guide for users of English in both formal and informal contexts. it covers key items of usage  which often present difficulty, the section on commonly confused words is a detailed listing  of such items and is based on the errors normally encountered in spoken English. }
}