APA (7th ed.) Citation

Stone, B., & Ross, G. (2005). Love Letters of a Rookie to Julie. Project Gutenberg.

Chicago Style (17th ed.) Citation

Stone, Barney, and Gordon Ross. Love Letters of a Rookie to Julie. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Stone, Barney, and Gordon Ross. Love Letters of a Rookie to Julie. Project Gutenberg, 2005.

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