APA (7th ed.) Citation

Guskey, T. R. (1997). Implementing mastery learning (2nd ed.). Wadsworth.

Chicago Style (17th ed.) Citation

Guskey, Thomas R. Implementing Mastery Learning. 2nd ed. Belmont, Calif: Wadsworth, 1997.

MLA (9th ed.) Citation

Guskey, Thomas R. Implementing Mastery Learning. 2nd ed. Wadsworth, 1997.