English business letters : commercial correspondence for foreign students

MLA

King, Frederick Walter, D. Ann Cree, and David O'Gorman. English Business Letters : Commercial Correspondence for Foreign Students. Essex: Longman, 1989.

APA

King, F. Walter, Cree, D. Ann, & O'Gorman, D. (1989). English business letters : commercial correspondence for foreign students. Essex: Longman.

Chicago

King, Frederick Walter, D. Ann Cree, and David O'Gorman. English Business Letters: Commercial Correspondence for Foreign Students. Essex: Longman, 1989.