Dyfyniad APA

Hillel, D. (1972). Optimizing the soil physical environment toward greater crop yields. Academic Press.

Dyfyniad Arddull Chicago

Hillel, Daniel. Optimizing the Soil Physical Environment Toward Greater Crop Yields. New York: Academic Press, 1972.

Dyfyniad MLA

Hillel, Daniel. Optimizing the Soil Physical Environment Toward Greater Crop Yields. Academic Press, 1972.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.