Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.