@book{12007,
	author = {Hammond, Bayard L. and Polhamus, Loren G.},
	title = {Research on guayule (Parthenium argentatum), 1942-1959 /},
	publisher = {U.S. Dept. of Agriculture,},
	year = {1965.},
	series = {Technical bulletin / United States Department of Agriculture ;},
	address = {Washington :}
}