APA (7th ed.) Citation

Lucka, E., & Schleussner, E. (2006). The Evolution of Love. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lucka, Emil, and Ellie Schleussner. The Evolution of Love. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Lucka, Emil, and Ellie Schleussner. The Evolution of Love. Project Gutenberg, 2006.

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