APA (7th ed.) Citation

Viereck, G. S. (2005). The House of the Vampire. Project Gutenberg.

Chicago Style (17th ed.) Citation

Viereck, George Sylvester. The House of the Vampire. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Viereck, George Sylvester. The House of the Vampire. Project Gutenberg, 2005.

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