Kearns, C. A., & Thomson, J. D. (2001). The natural history of bumblebees: A sourcebook for investigations. Boulder, Colorado: University Press of Colorado.
Citación estilo ChicagoKearns, Carol Ann, y James D. Thomson. The Natural History of Bumblebees: A Sourcebook for Investigations. Boulder, Colorado: University Press of Colorado, 2001.
Cita MLAKearns, Carol Ann, y James D. Thomson. The Natural History of Bumblebees: A Sourcebook for Investigations. Boulder, Colorado: University Press of Colorado, 2001.
Precaución: Estas citas no son 100% exactas.