APA (7th ed.) Citation

Zweig, S., Paul, E., & Paul, C. (2011). Romain Rolland: The Man and His Work. Project Gutenberg.

Chicago Style (17th ed.) Citation

Zweig, Stefan, Eden Paul, and Cedar Paul. Romain Rolland: The Man and His Work. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Zweig, Stefan, et al. Romain Rolland: The Man and His Work. Project Gutenberg, 2011.

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