...
Herpnet: "HerpNET." Web. 9 June 2010. www.herpnet.org/
Hubbs, Clark C., Robert R. J. Edwards, and Gary G. P. Garrett. "2008. An annotated checklist of the freshwater fishes of Texas, with keys to identification of species. Second Edition." Texas Academy Journal of Science Supplement (2008July). Web:2–87. https://doi.org/10.15781/T22Z13563.
Jelks, H. L., Walsh, S. J. Walsh, Burkhead, N. M. Burkhead, S. Contreras-Balderas, SE. , Diaz-Pardo, E., Hendrickson, D. A. , LyonsHendrickson, J. Lyons, Mandrak, N. E. , McCormickMandrak, F. McCormick, Nelson, J. S. , PlataniaNelson, S. P, Porter. Platania, B. A. , RenaudPorter, C. B. , Schmitter-SotoRenaud, J. J. Schmitter-Soto, Taylor, E. B. Taylor, Warren, and M. L. Warren. 2008. Conservation status of imperiled North American freshwater and diadromous fishes. Fisheries 33.(8 (2008):372-407. Print.
Mammal Network Information System: "MaNIS Home." Web. 9 June 2010. University of California, Berkeley, CA. manisnet.org/
Nelson, Joesph S. Common and Scientific Names of Fishes Page, L. M., H. Espinosa-Pérez, L. T. Findley, C. R. Gilbert, R. N. Lea, N. E. Mandrak, R. L. Mayden, and J. S. Nelson. 2013. Common and scientific names of fishes from the United States, Canada, and Mexico. 6th ed, 7th edition. American Fisheries Society, 2004. PrintSpecial Publication 34, Bethesda, Maryland.
Python: "PythonProgramming Python Programming Language "Official Website." Web. 21 Sept. 2010. http://www.python.org/
Rios, N. E., and Bart, H. L. Bart, Jr. ( 1997) . GEOLocate georeferencing software: user's manual. Tulane Museum of Natural History, Belle Chasse LA, USA. http://www.museum.tulane.edu/geolocate/
Sabaj Perez, M.H. (editor). 2010. Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an Online Reference. Version 2.0 (8 November 2010). Electronically accessible at www.asih.org, American Society of Ichthyologists and Herpetologists, Washington, DC.
Specify 6: "Welcometo Welcome to Specify 6 | Specify 6." Web. 9 June 2010. specifysoftware.org/
...
Wieczorek, J., Q. Guo, and R. Hijmans. "2004. The point-radius method for georeferencing locality descriptions andcalculating and calculating associated uncertainty" . International Journal of Geographical Information Science 18.(8 (2004): 745-767. Print.