@book{201728,
	author = {Shannon Raymond C},
	title = {Review of the american xylotine surphid flies  /},
	note = {Sobretiro de: Proceedings U. S. National Museum 69 (2635): 1-52 .  Encuadernado con: Notes on american tuo-winged flies of the family sapromyzidae/by J. R. Malloch                                                                 74-56}
}