APA (7th ed.) Citation

Coolidge, S. (2010). Not Quite Eighteen. Project Gutenberg.

Chicago Style (17th ed.) Citation

Coolidge, Susan. Not Quite Eighteen. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Coolidge, Susan. Not Quite Eighteen. Project Gutenberg, 2010.

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