APA (7th ed.) Citation

Lent, E. B., & Matthews, H. B. (2010). Cupid's Middleman. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lent, Edward B., and Harry B. Matthews. Cupid's Middleman. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Lent, Edward B., and Harry B. Matthews. Cupid's Middleman. Project Gutenberg, 2010.

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