APA Style
Polya, George. (1981).
Mathematical Discovery: On Understanding, Learning, and Teaching Problem Solving .
New York:
John Wiley rn Sons Inc..
Chicago Style
Polya, George.
Mathematical Discovery: On Understanding, Learning, and Teaching Problem Solving.
New York:
John Wiley rn Sons Inc.,
1981.
Text.
MLA Style
Polya, George.
Mathematical Discovery: On Understanding, Learning, and Teaching Problem Solving.
New York:
John Wiley rn Sons Inc.,
1981.
Text.
Turabian Style
Polya, George.
Mathematical Discovery: On Understanding, Learning, and Teaching Problem Solving.
New York:
John Wiley rn Sons Inc.,
1981.
Print.