APA (7th ed.) Citation

MacLean, G. R. (1984). Danger at your door (1. print.). Crossway Books.

Chicago Style (17th ed.) Citation

MacLean, Gordon R. Danger at Your Door. 1. print. Westchester, Ill: Crossway Books, 1984.

MLA (8th ed.) Citation

MacLean, Gordon R. Danger at Your Door. 1. print. Crossway Books, 1984.