APA (7th ed.) Citation

Atkinson, W. W. (2008). Genuine Mediumship or The Invisible Powers. Project Gutenberg.

Chicago Style (17th ed.) Citation

Atkinson, William Walker. Genuine Mediumship or The Invisible Powers. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Atkinson, William Walker. Genuine Mediumship or The Invisible Powers. Project Gutenberg, 2008.

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