Bombus morawitzianus (Swedish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Bombus morawitzianus" in Swedish language version.

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bioone.org

”Psithyrus” (på engelska). Natural History Museum, London. http://www.nhm.ac.uk/research-curation/research/projects/bombus/ps.html. Läst 13 januari 2015.
Paul Williams (25 april 1991). ”The bumble bees of the Kashmir Himalaya (Hymenoptera: Apidae, Bombini) (bilder)” (på engelska) (PDF (6,42 MB)). Bulletin of the British Museum (Natural History) (Entomology) 60: 1-204. Natural History Museum, London. sid. 158-159. http://www.nhm.ac.uk/research-curation/research/projects/bombus/Williams91_Kashmir5_figs.pdf. Läst 21 april 2010. (illustrationer)
Paul Williams (25 april 1991). ”The bumble bees of the Kashmir Himalaya (Hymenoptera: Apidae, Bombini) (arter)” (på engelska) (PDF (4,73 MB)). Bulletin of the British Museum (Natural History) (Entomology) (Natural History Museum, London) 60: sid. 50. http://www.nhm.ac.uk/research-curation/research/projects/bombus/Williams91_Kashmir3_species.pdf. Läst 21 april 2010. (arter)