APA-Zitierstil (7. Ausg.)

Alexander, L. G. (1973). Mainline: Progress A, students' book (1a. ed.). Longman.

Chicago-Zitierstil (17. Ausg.)

Alexander, Louis George. Mainline: Progress A, Students' Book. 1a. ed. Londres: Longman, 1973.

MLA-Zitierstil (9. Ausg.)

Alexander, Louis George. Mainline: Progress A, Students' Book. 1a. ed. Longman, 1973.