APA-Zitierstil (7. Ausg.)

Não informado. (1949). Progressive agriculture in Arizona. University of Arizona, College of Agriculture.

Chicago-Zitierstil (17. Ausg.)

Não informado. Progressive Agriculture in Arizona. Tucson, Ariz: University of Arizona, College of Agriculture, 1949.

MLA-Zitierstil (8. Ausg.)

Não informado. Progressive Agriculture in Arizona. University of Arizona, College of Agriculture, 1949.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.