APA (7th ed.) Citation

L'Amour, L. (1973). The Ferguson rifle / Louis L'Amour. Bantam Books.

Chicago Style (17th ed.) Citation

L'Amour, Louis. The Ferguson Rifle / Louis L'Amour. Toronto ; New York: Bantam Books, 1973.

MLA (9th ed.) Citation

L'Amour, Louis. The Ferguson Rifle / Louis L'Amour. Bantam Books, 1973.