APA (7th ed.) Citation

Mayer, R. E. (1991). Thinking, problem solving, cognition (2nd ed.). Freeman.

Chicago Style (17th ed.) Citation

Mayer, Richard E. Thinking, Problem Solving, Cognition. 2nd ed. New York: Freeman, 1991.

MLA (9th ed.) Citation

Mayer, Richard E. Thinking, Problem Solving, Cognition. 2nd ed. Freeman, 1991.