TY  - BOOK
AU  - Visscher,P.K.
AU  - Danforth,B.N.
TI  - Biology of Calliopsis pugionis (Hymenoptera: Andrenidae): Nesting, Foraging, and Investment Sex Ratio
UR  - https://drive.google.com/file/d/1sPm5WkfkP0It8Z3MGeq9STI3LYhELrbW/view?usp=drivesdk
ER  -