APA-referens (7:e uppl.)

Williams, A. A. (1970). Basic subjects for the slow learner. Methuen Educational.

Chicago-referens (17:e uppl.)

Williams, Alec Arthur. Basic Subjects for the Slow Learner. London: Methuen Educational, 1970.

MLA-referens (9:e uppl.)

Williams, Alec Arthur. Basic Subjects for the Slow Learner. Methuen Educational, 1970.