APA (7e ed.) Bronvermelding

American Heritage. (1961). Cowboys and cattle country. Harper and Brothers.

Chicago (17e ed.) Bronvermelding

American Heritage. Cowboys and Cattle Country. New York: Harper and Brothers, 1961.

MLA (9e ed.) Bronvermelding

American Heritage. Cowboys and Cattle Country. Harper and Brothers, 1961.

Let op: Deze citaties zijn niet altijd 100% accuraat.