APA (7th ed.) Citation

Thorp, N. H., Fife, A. E., Fife, A., & Gardner, N. (1966). Songs of the cowboys. C. N. Potter.

Chicago Style (17th ed.) Citation

Thorp, N. Howard, Austin E. Fife, Alta Fife, and Naunie Gardner. Songs of the Cowboys. New York: C. N. Potter, 1966.

MLA (9th ed.) Citation

Thorp, N. Howard, et al. Songs of the Cowboys. C. N. Potter, 1966.