@book{28504,
	author = {Koch, Stephen D.},
	title = {The Eragrostis pectionacea-pilosa complex in north and Central America (Graminaea : Eragrostoidea)},
	publisher = {University of Illinois,},
	year = {1974},
	series = {Illinois biological monographs},
	address = {Urbana, Ill. :}
}