Du Vivier, M., Hopkins, A., & Potter, J. (1994). Look ahead: Classroom course. 2, Teacher's book. Longman.
Chicago Style (17th ed.) CitationDu Vivier, Madeleine, Andy Hopkins, and Jocelyn Potter. Look Ahead: Classroom Course. 2, Teacher's Book. Harlow: Longman, 1994.
MLA (9th ed.) CitationDu Vivier, Madeleine, et al. Look Ahead: Classroom Course. 2, Teacher's Book. Longman, 1994.