APA (7th ed.) Citation

Waller, J. (2013). A Treatise on the Incubus, or Night-Mare, Disturbed Sleep, Terrific Dreams and Nocturnal Visions. Project Gutenberg.

Chicago Style (17th ed.) Citation

Waller, John. A Treatise on the Incubus, or Night-Mare, Disturbed Sleep, Terrific Dreams and Nocturnal Visions. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Waller, John. A Treatise on the Incubus, or Night-Mare, Disturbed Sleep, Terrific Dreams and Nocturnal Visions. Project Gutenberg, 2013.

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