Cockerell, T. D. A. Some Bees of the Genus Nomada From Washington State. Wiley.
Chicago Style (17th ed.) CitationCockerell, T. D. A. Some Bees of the Genus Nomada From Washington State. Wiley.
MLA (9th ed.) CitationCockerell, T. D. A. Some Bees of the Genus Nomada From Washington State. Wiley.
Warning: These citations may not always be 100% accurate.