APA Citatie

Preston, D. R. (1988). Varieties of American English ( Teacher's handbook ). Washington, D.C: United States Department of State.

Chicago Style citaat

Preston, Dennis R. Varieties of American English ( Teacher's Handbook ). Washington, D.C: United States Department of State, 1988.

MLA citatie

Preston, Dennis R. Varieties of American English ( Teacher's Handbook ). Washington, D.C: United States Department of State, 1988.

Let op: Deze citaties zijn niet altijd 100% accuraat.