The Regents of the University of Michigan and its licensors
citation bibliographique
Myers, P. and J. Burch 2001. "Gastropoda" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Gastropoda.html
auteur
Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
auteur
John B. Burch, Mollusk Division, Museum of Zoology, University of Michigan-Ann Arbor
