Fisher, R. D., & Ludwig, C. A. (2012). Catalog of type specimens of recent mammals: Rodentia -Sciuromorpha and Castorimorpha- in the National Museum of Natural History, Smithsonian Institution. Smithsonian Institution Scholarly Press.
Cita Chicago (17th ed.)Fisher, Robert D., i Craig A. Ludwig. Catalog of Type Specimens of Recent Mammals: Rodentia -Sciuromorpha and Castorimorpha- in the National Museum of Natural History, Smithsonian Institution. Washington, D.C: Smithsonian Institution Scholarly Press, 2012.
Cita MLA (9th ed.)Fisher, Robert D., i Craig A. Ludwig. Catalog of Type Specimens of Recent Mammals: Rodentia -Sciuromorpha and Castorimorpha- in the National Museum of Natural History, Smithsonian Institution. Smithsonian Institution Scholarly Press, 2012.