by Hal Watts, Laurie Clark Humpal · Concept Systems · tapa blanda · ISBN 9781880229040
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«Deep Diving» is the deep diving manual by Hal Watts and Laurie Clark Humpal, published by Concept Systems in paperback in 1991 (88 pages, in English).
Manual focused on deep dives: explains how to prepare and plan each dive, what specific equipment is used at greater depths, and how to apply proper decompression techniques to carry out the activity safely.
Part of the Specialty Diver series from Scuba Schools International (SSI), originally published in 1991.
Training manual aimed at divers who want to specialize in deep dives.
