APA (7th ed.) Citation

Barker, P. (1994). The eye in the door. Penguin.

Chicago Style (17th ed.) Citation

Barker, Pat. The Eye in the Door. Harmondsworth: Penguin, 1994.

MLA (8th ed.) Citation

Barker, Pat. The Eye in the Door. Penguin, 1994.

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