APA (7th ed.) Citation

Marsh, R. (2007). The seen and the unseen / by Richard Marsh. Valancourt Books.

Chicago Style (17th ed.) Citation

Marsh, Richard. The Seen and the Unseen / by Richard Marsh. Chicago, Ill.: Valancourt Books, 2007.

MLA (9th ed.) Citation

Marsh, Richard. The Seen and the Unseen / by Richard Marsh. Valancourt Books, 2007.

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