APA (7th ed.) Citation

Biggers, E. D. (2010). Seven Keys to Baldpate. Project Gutenberg.

Chicago Style (17th ed.) Citation

Biggers, Earl Derr. Seven Keys to Baldpate. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Biggers, Earl Derr. Seven Keys to Baldpate. Project Gutenberg, 2010.

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