APA (7th ed.) Citation

Purnell, A., & Frey, O. (1978). The devil's seed. Alan Purnell Productions.

Chicago Style (17th ed.) Citation

Purnell, Alan, and Oliver Frey. The Devil's Seed. London: Alan Purnell Productions, 1978.

MLA (9th ed.) Citation

Purnell, Alan, and Oliver Frey. The Devil's Seed. Alan Purnell Productions, 1978.