@book{206589,
	author = {Aldrich, J.M.},
	title = {Two-winged flies of the genera dolichopus and hydrophorus collected in Alaska in 1921, with new species of dolichopus from North America and Hawaii  /},
	note = {Sobretiro de: Proceedings U.S. National Museum 61 (2446): 1-18. Encuadernado con otros impresos similares}
}