APA (7th ed.) Citation

Boyer, C. (2005). Some notes on the magic squares of squares problem.

Chicago Style (17th ed.) Citation

Boyer, Christian. Some Notes on the Magic Squares of Squares Problem. 2005.

MLA (9th ed.) Citation

Boyer, Christian. Some Notes on the Magic Squares of Squares Problem. 2005.

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