APA-viite (7. p.)

Hopkins, A., & Potter, J. (1996). Look ahead 1 classroom course: Students` book (1a. ed. 7a. reimp.). Longman.

Chicago-viite (17. p.)

Hopkins, Andy, ja Jocelyn Potter. Look Ahead 1 Classroom Course: Students` Book. 1a. ed. 7a. reimp. Madrid: Longman, 1996.

MLA-viite (9. p.)

Hopkins, Andy, ja Jocelyn Potter. Look Ahead 1 Classroom Course: Students` Book. 1a. ed. 7a. reimp. Longman, 1996.