How to solve it : a new aspect of mathematical method.

MLA

Pólya, George. How to Solve it : a New Aspect of Mathematical Method. 2nd edition New York: Doubleday Anchor, 1957.

APA

Pólya, G. (1957). How to solve it : a new aspect of mathematical method. 2nd edition New York: Doubleday Anchor.

Chicago

Pólya, George, How to Solve it: A New Aspect of Mathematical Method. 2nd edition New York: Doubleday Anchor, 1957.