@book{251970,
	author = {Wax, Loyd M. and Fawcett, Richard S.},
	title = {Weeds of the North Central States},
	publisher = {University of Illinois},
	year = {1981},
	address = {Urbana},
	note = {Bulletin 772. University of Illinois at Urbana-Champaign, College of Agriculture, Agricultural Experiment Station}
}