@book{201758,
	author = {Metcalf, C. L.},
	title = {Sytphidae of Maine second report :},
	publisher = { Agricultural Experiment Station},
	address = {Orono, Maine  :},
	note = {Encuadernado con: Notes on american two-winged flies of the family sapromizidae/by J. R. Malloch}
}