Citazione Stile APA (7a Edizione)

Redl, F., Wattenberg, W. W., & Spalding, W. (1959). Mental hygiene in teaching (2nd ed.). Harcourt Brace.

Citazione stile Chigago Style (17a edizione)

Redl, Fritz, William W. Wattenberg, e William Spalding. Mental Hygiene in Teaching. 2nd ed. New York: Harcourt Brace, 1959.

Citatione MLA (9a ed.)

Redl, Fritz, et al. Mental Hygiene in Teaching. 2nd ed. Harcourt Brace, 1959.