APA (7e ed.) Bronvermelding

Shepherd, G. S., & Futrell, G. A. (1969). Marketing farm products; economic analysis (5th ed.). Iowa State University Press.

Chicago (17e ed.) Bronvermelding

Shepherd, Geoffrey Seddon, en Gene A. Futrell. Marketing Farm Products; Economic Analysis. 5th ed. Ames: Iowa State University Press, 1969.

MLA (9e ed.) Bronvermelding

Shepherd, Geoffrey Seddon, en Gene A. Futrell. Marketing Farm Products; Economic Analysis. 5th ed. Iowa State University Press, 1969.

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