@book{17433,
	author = {Hurd, Paul D., Jr. and Linsley, Earle Gorton.},
	title = {Ecology of the squash and gourd bee Peponapis pruinosa, on cultivated cucurbits in California (hymenoptera: Apoidea)},
	publisher = {Smithsonian Institution,},
	year = {1974},
	series = {Smithsonian contributions to zoology},
	address = {Washington :}
}