APA (7th ed.) Citation

Schwartz, R. E. (2014). The octogonal PETs. American Mathematical Society.

Chicago Style (17th ed.) Citation

Schwartz, Richard Evan. The Octogonal PETs. Providence, Rhode Island: American Mathematical Society, 2014.

MLA (8th ed.) Citation

Schwartz, Richard Evan. The Octogonal PETs. American Mathematical Society, 2014.

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