Citazione Stile APA (7a Edizione)

Zeitz, P. (2007). The art and craft of problem solving (2nd ed.). John Wiley.

Citazione stile Chigago Style (17a edizione)

Zeitz, Paul. The Art and Craft of Problem Solving. 2nd ed. Hoboken, NJ: John Wiley, 2007.

Citatione MLA (8a ed.)

Zeitz, Paul. The Art and Craft of Problem Solving. 2nd ed. John Wiley, 2007.