APA (7th ed.) Citation

McGrath, P. (1994). Dr. Haggard's disease. Penguin Books.

Chicago Style (17th ed.) Citation

McGrath, Patrick. Dr. Haggard's Disease. London u.a: Penguin Books, 1994.

MLA (9th ed.) Citation

McGrath, Patrick. Dr. Haggard's Disease. Penguin Books, 1994.

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