APA (7th ed.) Citation

Burroughs, E. R. (1994). The Monster Men. Project Gutenberg.

Chicago Style (17th ed.) Citation

Burroughs, Edgar Rice. The Monster Men. Project Gutenberg, 1994.

MLA (9th ed.) Citation

Burroughs, Edgar Rice. The Monster Men. Project Gutenberg, 1994.

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