Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.