APA (7e ed.) Bronvermelding

Willis, H. (1971). Basic usage, vocabulary, and composition. Holt Rinehart and Winston.

Chicago (17e ed.) Bronvermelding

Willis, Hulon. Basic Usage, Vocabulary, and Composition. New York: Holt Rinehart and Winston, 1971.

MLA (9e ed.) Bronvermelding

Willis, Hulon. Basic Usage, Vocabulary, and Composition. Holt Rinehart and Winston, 1971.

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