Cita APA (7th ed.)

Treffinger, D. J. (2000). Practice problems for creative problem solving (3a. ed.). Prufrock Press.

Cita Chicago (17th ed.)

Treffinger, Donald J. Practice Problems for Creative Problem Solving. 3a. ed. Austin: Prufrock Press, 2000.

Cita MLA (9th ed.)

Treffinger, Donald J. Practice Problems for Creative Problem Solving. 3a. ed. Prufrock Press, 2000.