@book{11570,
	author = {Ibach, D. B.},
	title = {A graphic method of interpreting response to fertilizer /},
	publisher = {U.S. Dept. of Agriculture, Agricultural Research Service,},
	year = {1956.},
	series = {Agriculture handbook / United States Department of Agriculture ;},
	address = {Washington, D.C. :},
	note = {"Supersedes U.S. Bur. Agr. Econ., FM 105, Determining profitable use of fertilizers, 1953 / by D. B. Ibach and S. W. Mendum."}
}