Hillel, D. (1972). Optimizing the soil physical environment toward greater crop yields. Academic Press.
Lua i Stíl Chicago (17ú heag.)Hillel, Daniel. Optimizing the Soil Physical Environment Toward Greater Crop Yields. New York: Academic Press, 1972.
Lua MLA (9ú heag.)Hillel, Daniel. Optimizing the Soil Physical Environment Toward Greater Crop Yields. Academic Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.