La Berge, W. E., & Thorp, R. W. (2005). A Revision of the bees of the genus Andrena of the Western Hemisphere: Part XIV. ubgenus Onagrandrena; Part XV. subgenus Hesperandrena. Illinois Natural History Survey.
Chicago-Zitierstil (17. Ausg.)La Berge, Wallace E., und Robbin W. Thorp. A Revision of the Bees of the Genus Andrena of the Western Hemisphere: Part XIV. Ubgenus Onagrandrena; Part XV. Subgenus Hesperandrena. Champaign, Ill: Illinois Natural History Survey, 2005.
MLA-Zitierstil (9. Ausg.)La Berge, Wallace E., und Robbin W. Thorp. A Revision of the Bees of the Genus Andrena of the Western Hemisphere: Part XIV. Ubgenus Onagrandrena; Part XV. Subgenus Hesperandrena. Illinois Natural History Survey, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.