Titles by Gene Helfman

Sharks

Gene Helfman, George H. Burgess
May 2014 - The Johns Hopkins University Press
$26.95 USD - Paperback / softback
$26.95 USD - Electronic book text

Fishes

Gene Helfman, Bruce Collette
Sep 2011 - The Johns Hopkins University Press
$26.95 USD - Paperback / softback
$26.95 USD - Electronic book text