APA (7th ed.) Citation

Foster, C. (2016). Proof without words: Integer right triangle hypotenuses without Pythagoras. Mathematics Association of America.

Chicago Style (17th ed.) Citation

Foster, Colin. Proof Without Words: Integer Right Triangle Hypotenuses Without Pythagoras. Mathematics Association of America, 2016.

MLA (9th ed.) Citation

Foster, Colin. Proof Without Words: Integer Right Triangle Hypotenuses Without Pythagoras. Mathematics Association of America, 2016.

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