Krupenikov, I. (1992). History of soil science : from its: Inception to the present. Oxonian.
Citazione stile Chigago Style (17a edizione)Krupenikov, I.A. History of Soil Science : From Its: Inception to the Present. New Delhi: Oxonian, 1992.
Citatione MLA (9a ed.)Krupenikov, I.A. History of Soil Science : From Its: Inception to the Present. Oxonian, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.