APA (7th ed.) Citation

Polya, G. (1973). How to solve it: A new aspect of mathematical method. Princeton University Press.

Chicago Style (17th ed.) Citation

Polya, G. How to Solve It: A New Aspect of Mathematical Method. Princeton University Press, 1973.

MLA (8th ed.) Citation

Polya, G. How to Solve It: A New Aspect of Mathematical Method. Princeton University Press, 1973.

Warning: These citations may not always be 100% accurate.