@book{11852,
	author = {Paulsen, Harold A., and Ares, Fred N.},
	title = {Grazing values and management of black grama and tobosa grasslands and associated shrub ranges of the Southwest /},
	publisher = {U.S. Dept. of Agriculture,},
	year = {1962.},
	series = {Technical bulletin / United States Department of Agriculture ;},
	address = {Washington :}
}