APA (7th ed.) Citation

Cram, R. A. (2008). Black Spirits and White A Book of Ghost Stories. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cram, Ralph Adams. Black Spirits and White A Book of Ghost Stories. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Cram, Ralph Adams. Black Spirits and White A Book of Ghost Stories. Project Gutenberg, 2008.

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