Bohart, G. E. (1970) Commercial production and management of wild bees-A new entomological industry. Bull. Ent. Soc. Amer., 16: 8-9.
Bosch, J. and W. P. Kemp (2001) How to Manage the Blue Orchard Bee as an Orchard Pollinator. viii+88 pp. Sustainable Agricultural Network National Agricultural Library, Beltsville, Md., USA
Evans, H. E. and Linsley, E. G. (1960) Notes on a sleeping aggregation of solitary bees and wasps. Bull. South Calif. Acad. Sci., 59: 30-37.
Kitamura, T. and Y. Maeta (1983) Exploitation of artificial nests for propagation of Osmia cornifrons (Radoszkowski) (Hymenoptera: Megachilidae). Bull. Nagano Hort. Exp. Sta., (1): 21-30. (In Japanese with English summary.)