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Gene Helfman
Gene Helfman is the author of "Fins", "Sharks", "Beyond the Human Realm" and "The Diversity of Fishes: Biology, Evolution, and Ecology".
Books by Gene Helfman
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Fishes
Helfman, Gene
Hardback:
$48.00
The Diversity of ...
Helfman, Gene
Electronic book text:
$129.95
Fins
Helfman, Gene
Electronic book text:
$4.99
Beyond the Human ...
Helfman, Gene
Downloadable audio file:
$11.99