Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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