Reference citation:
Clements, R. E., and F. L. Long. 1923, Experimental pollination. An outline of the ecology of flowers and insects. Washington, D.C., USA, Carnegie Institute of Washington.

Source citation:
Web of Life. http://www.web-of-life.es .

Source archive URL:
https://github.com/globalbioticinteractions/web-of-life/archive/f63e4dbd52d31b698df5d5f63a409889a26fd0a5.zip

Reference citation:
Bauer, P.J., 1983. Bumblebee pollination relationships on the Beartooth Plateau tundra of southern Montana. American Journal of Botany, pp.134-144.

Source citation:
Sarah E Miller. 5/30/2016. Interations from various papers.

Source archive URL:
https://github.com/millerse/Pollination-Collection/archive/f1b58af5d109261ce3d628123f5ec1cd63b7156f.zip