@book{11537,
	author = {Wallis, R. L.},
	title = {Ecological studies on the potato psyllid as a pest of potatoes /},
	publisher = {U.S. Dept. of Agriculture,},
	year = {1955.},
	series = {Technical bulletin / United States Department of Agriculture ;},
	address = {Washington :},
	note = {Caption title.}
}