APA aipamena

Pólya, G. (1981). Mathematical discovery: On understanding, learning, and teaching problem solving (Combined ed.). Wiley.

Chicago Style aipamena

Pólya, George. Mathematical Discovery: On Understanding, Learning, and Teaching Problem Solving. Combined ed. New York: Wiley, 1981.

MLA aipamena

Pólya, George. Mathematical Discovery: On Understanding, Learning, and Teaching Problem Solving. Combined ed. Wiley, 1981.