TAN, K. H. (2014). Humic matter in soil and the environment: Principles and controversies. CRC Press.
Dyfyniad Arddull ChicagoTAN, Kim H. Humic Matter in Soil and the Environment: Principles and Controversies. CRC Press, 2014.
Dyfyniad MLATAN, Kim H. Humic Matter in Soil and the Environment: Principles and Controversies. CRC Press, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.