APA (7th ed.) Citation

Cummings, R. (2007). Wandl the Invader. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cummings, Ray. Wandl the Invader. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Cummings, Ray. Wandl the Invader. Project Gutenberg, 2007.

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