Download or read book Super Subs written by David Jefferis and published by New York ; St. Catharines, Ont. : Crabtree Pub.. This book was released on 2002 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our planet is 70% water, much of it unknown. Super Subs explores the latest machines and the people that help reveal the secrets of the oceans. Fascinating topics include submarines and rescue apparatus, scuba diving, wreck hunters, underwater construction, and living underwater.