@book{29630,
	author = {Mai, William F. and Kurk, T. H.},
	title = {Pictorial key to genera of plant parasitic nematodes},
	publisher = {State College of Agriculture. Dept. of Plant Pathology,},
	year = {1968},
	address = {Ithaca, New York :},
	edition = {(3 ed.)}
}