Viperidae -- Congresses

Books

Biology of the pitvipers
Campbell, Jonathan A.  Brodie, Edmund D. 
Publisher: Selva
ISBN10: 0963053701 ISBN13: 9780963053701

Biology of the vipers
Schuett, Gordon W. 
Publisher: Eagle Mountain Pub
ISBN10: 097201540X ISBN13: 9780972015400 LCC: QL666