Citazione Stile APA (7a Edizione)

Kellogg, C. E. (1975). Agricultural development: Soil, food, people, work. Soil Science Society of America.

Citazione stile Chigago Style (17a edizione)

Kellogg, Charles Edwin. Agricultural Development: Soil, Food, People, Work. Madison, Wis: Soil Science Society of America, 1975.

Citatione MLA (9a ed.)

Kellogg, Charles Edwin. Agricultural Development: Soil, Food, People, Work. Soil Science Society of America, 1975.