Hartge, K. H., & Stewart, B. A. (1995). Soil structure its development and function. CRC Lewis Publishers.
Dyfyniad Arddull ChicagoHartge, K. H., and B. A. Stewart. Soil Structure Its Development and Function. London: CRC Lewis Publishers, 1995.
Dyfyniad MLAHartge, K. H., and B. A. Stewart. Soil Structure Its Development and Function. CRC Lewis Publishers, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.