APA (7th ed.) Citation

Bowditch, C. P. (2012). On the Age of Maya Ruins. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bowditch, Charles P. On the Age of Maya Ruins. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Bowditch, Charles P. On the Age of Maya Ruins. Project Gutenberg, 2012.

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