Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

Mayer, Richard E. Thinking, Problem Solving, Cognition. 2nd. ed. W. H. Freeman and company, 1991.