@book{226985,
	author = {Hatfield, Jerry L. and Sauer, Thomas J.},
	title = {Soil management building a stable base for agriculture hatfield / Jerry L. Hatfield,Thomas J. Sauer},
	publisher = {Soil Science Society of America},
	year = {2011},
	address = {Madison},
	note = {Manejo del suelo creando una base estable para la agricultura.}
}