APA (7th ed.) Citation

Coolidge, S., & Merrill, F. T. (2011). A Round Dozen. Project Gutenberg.

Chicago Style (17th ed.) Citation

Coolidge, Susan, and Frank T. Merrill. A Round Dozen. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Coolidge, Susan, and Frank T. Merrill. A Round Dozen. Project Gutenberg, 2011.

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