@book{38291,
	author = {Peck, T. R. and Cope, J. T., Jr. and American Society of Agronomy. Madison, Wis.},
	title = {Soil testing, correlating and interpreting the analytical results},
	publisher = {American Society of Agronomy,},
	year = {1977},
	series = {Special publication},
	address = {Madison, Wis. :}
}