APA (7th ed.) Citation

Silverberg, R. (2008). The Happy Unfortunate. Project Gutenberg.

Chicago Style (17th ed.) Citation

Silverberg, Robert. The Happy Unfortunate. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Silverberg, Robert. The Happy Unfortunate. Project Gutenberg, 2008.

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