APA Citation

POLYA. (1957). How to solve it: A new aspect of mathematical method (2nd ed.). London: penguin Books.

Chicago Style Citation

POLYA. How to Solve It: A New Aspect of Mathematical Method. 2nd ed. London: penguin Books, 1957.

MLA Citation

POLYA. How to Solve It: A New Aspect of Mathematical Method. 2nd ed. London: penguin Books, 1957.

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