• [Wiki] http://en.wikipedia.org/wiki/Cryptobranchus_alleganiensis.
• [amphibiaweb] http://amphibiaweb.org/cgi/amphib_query?rel-common_name=like&where-scientific_name=Cryptobranchus+alleganiensis.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Cryptobranchus_alleganiensis.
• [Horc2010] Horchler, D. C. (2010). Long-term growth and monitoring of the Eastern Hellbender (Cryptobranchus a. alleganiensis) in Eastern West Virginia. PhD thesis, Marchall University.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [PeteWilk1983] Peterson, C. I., Wilkinson, R. F., Topping, M. S., and Metter, D. E. (1983). Age and growth of the Ozark hellbender (Cryptobranchus alleganiensis bishopi). Copeia, 1:225--231.