APA (7th ed.) Citation

O'Connor, J. (1949). The rifle book ([1st ed.].). Knopf.

Chicago Style (17th ed.) Citation

O'Connor, Jack. The Rifle Book. [1st ed.]. New York: Knopf, 1949.

MLA (9th ed.) Citation

O'Connor, Jack. The Rifle Book. [1st ed.]. Knopf, 1949.