@book{12330,
	author = {United States. and Alverson, Kent Arthur,},
	title = {Soil conservation is easy if you do it with a plan;},
	year = {1967]},
	series = {[United States. Dept. of Agriculture] PA-},
	address = {Washington,},
	edition = {[Slightly rev.},
	note = {Previous ed. by Kent Arthur Alverson.}
}