APA (7th ed.) Citation

Couperus, L., Berrington, B. S., & Calthrop, D. C. (2011). Psyche. Project Gutenberg.

Chicago Style (17th ed.) Citation

Couperus, Louis, B. S. Berrington, and Dion Clayton Calthrop. Psyche. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Couperus, Louis, et al. Psyche. Project Gutenberg, 2011.

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