Cita APA (7th ed.)

Kirby, G. R., & Goodpaster, J. R. (2002). Thinking (Third Edition.). Prentice Hall.

Cita Chicago (17th ed.)

Kirby, Gary R., i Jeffery R. Goodpaster. Thinking. Third Edition. Upper Saddle River, New Jersey: Prentice Hall, 2002.

Cita MLA (9th ed.)

Kirby, Gary R., i Jeffery R. Goodpaster. Thinking. Third Edition. Prentice Hall, 2002.