APA (7th ed.) Citation

Dumas, A. (1990). The three musketeers. Project Gutenberg.

Chicago Style (17th ed.) Citation

Dumas, Alexandre. The Three Musketeers. Champaign, Ill: Project Gutenberg, 1990.

MLA (9th ed.) Citation

Dumas, Alexandre. The Three Musketeers. Project Gutenberg, 1990.

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