Citazione Stile APA (7a Edizione)

Hedges, T. R. 1., & Sitton, G. R. 1. (1956). Farm management manual, a guide to recognizing a farm. National Press.

Citazione stile Chigago Style (17a edizione)

Hedges, Trimble Raymond 1906, e Gordon Russell 1916 Sitton. Farm Management Manual, a Guide to Recognizing a Farm. Palo Alto, Calif: National Press, 1956.

Citatione MLA (9a ed.)

Hedges, Trimble Raymond 1906, e Gordon Russell 1916 Sitton. Farm Management Manual, a Guide to Recognizing a Farm. National Press, 1956.