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edward a betts
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The living world
Augustus C. L. Arnold, Edward A. Samuels, B. Former Owner Dsi Betts · Creative Media Partners, LLC
Sayfa sayısı yok · 1868
Zoology / Anthropology / Pictorial works
Advanced diving activities
Edward A. Betts · American Nitrox Divers International
66 sayfa · 1995
Deep diving / Oxygen in the body / Nitrogen in the body
The application of enriched air mixtures
Edward A. Betts · American Nitrox Divers Inc.
90 sayfa · 1992
Decompression sickness / Deep diving / Equipment and supplies / Nitrogen in the body / Oxygen in the body
Introduction to enriched air diving
Edward A. Betts · American Nitrox Divers International
64 sayfa · 1994
Deep diving / Oxygen in the body / Nitrogen in the body
לנשום אויר בטוח
Edward A. Betts, Nir Avni, Elbin Noiferṭ · American Nitrox Divers International
72 sayfa · 2010
Deep diving / Handbooks, manuals