1.
Sea of Cortez Marine Invertebrates: A Guide for the Pacific Coast, Mexico to Ecuador - Alex ...
by Kerstitch, Alex, Hashagen, ...
ISBN: 9780930118143
List Price: $20.95
2.
Reef Sharks & Rays of the World: A Guide to Their Identification, Behavior and Ecology
by Michael, Scott W., Hashagen...
ISBN: 9780930118181
3.
Marine Animals of Baja California
by Gotshall, Daniel W., Hashag...
ISBN: 9780930118150
List Price: $18.95