Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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