1. Honeybees and red clover pollination;Anderson E.;American Bee Journal,1944
2. Proboscis Length and Resource Utilization in Two Uruguayan Bumblebees: Bombus atratus Franklin and Bombus bellicosus Smith (Hymenoptera: Apidae)
3. Inflorescence, Bumble bee, and climate interactions in seed crops of a Tetraploid red clover (Trifolium pratense L.);Clifford P.;Journal of Applied Seed Production,1989
4. Bees on clover, value of bees as Pollinators;Crum C.;American Bee Journal,1941
5. The leafcutting bee,Megachile rotundata(F.): a potential pollinator for red clover