- ↑ 1.0 1.1
"Crotalus pusillus". IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature. 2007. Ginkuhà 24 Oktubre 2012.
- ↑ Klauber, Laurence M. (1952) Taxonomic studies on rattlesnakes of Mainland Mexico., Bulletins of the Zoological Society of San Diego (26): 1-143
- ↑ 3.0 3.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
- ↑ TIGR Reptile Database . Uetz P. , 2 Oktubre 2007
