Template:Williams et al., 2011
- Williams, P.H., An, J. & Huang, J. 2011. The bumblebees of the subgenus Subterraneobombus: integrating evidence from morphology and DNA barcodes (Hymenoptera, Apidae, Bombus). Zoological Journal of the Linnean Society 163(3): 813–862. DOI: 10.1111/j.1096-3642.2011.00729.x