Style de citation APA (7e éd.)

Webster, D. (1981). Keep listening: Study guide (1a. ed.). Longman.

Style de citation Chicago (17e éd.)

Webster, Diana. Keep Listening: Study Guide. 1a. ed. Harlow: Longman, 1981.

Style de citation MLA (9e éd.)

Webster, Diana. Keep Listening: Study Guide. 1a. ed. Longman, 1981.