@book{12418,
	author = {Henson, P. R. and Schoth, Harry August,},
	title = {Vetch culture and uses},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1968]},
	series = {United States. Dept. of Agriculture. Farmers' bulletin},
	address = {Washington,},
	edition = {Rev.}
}