Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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