Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.