APA (7th ed.) Citation

P�olya, G. (1957). How to solve it: A new aspect of mathematical method (2d ed.). Doubleday.

Chicago Style (17th ed.) Citation

P�olya, George. How to Solve It: A New Aspect of Mathematical Method. 2d ed. Garden City, N.Y.,: Doubleday, 1957.

MLA (9th ed.) Citation

P�olya, George. How to Solve It: A New Aspect of Mathematical Method. 2d ed. Doubleday, 1957.