Jack Jackson - Deep diving - 2005 - 160 pages
Part aspirational, part instructional, this book is designed for competent divers wishing to push themselves to the limit. It focuses on diving with all types of sharks - from ...
Marty Snyderman - Science - 1991 - 320 pages
Explains the life and habits of marine invertebrates, vertebrates, sharks, and mammals, in such habitats as the coral reef, temperate seas, the poles, and the open ocean