http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
monograph of the Western Hemisphere bumblebees (Hymenoptera: Apidae; Bombinae)
Memoirs of the Entomological Society of Canada ; no. 65, 89
Memoirs of the Entomological Society of Canada ; no. 65, 82, 89, 91