Hillel, D. (1972). Optimizing the soil physical environment toward greater crop yields. New York: Academic Press.
Trích dẫn kiểu ChicagoHillel, Daniel. Optimizing the Soil Physical Environment Toward Greater Crop Yields. New York: Academic Press, 1972.
Trích dẫn MLAHillel, Daniel. Optimizing the Soil Physical Environment Toward Greater Crop Yields. New York: Academic Press, 1972.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.