APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.