Style de citation APA (7e éd.)

Kimbrough, V. F., & Vai, M. (1991). English on call: Level one. McGraw-Hill.

Style de citation Chicago (17e éd.)

Kimbrough, Victoria F., et Marjorie Vai. English on Call: Level One. New York: McGraw-Hill, 1991.

Style de citation MLA (8e éd.)

Kimbrough, Victoria F., et Marjorie Vai. English on Call: Level One. McGraw-Hill, 1991.