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The Cave Diving Group Manual - Ward, Andrew M.; Hayward, Colin P.; Brock, David C. W.; Cordingley, John N.; Price, Duncan M.; Skorupka, Rupert P.; Stanton, Richard W.; Thomas, Mike B.; Volanthen,
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A Guide to Cave Diving for Beginners - AquaViews
The Essentials of Cave Diving: The latest techniques, equipment and practices for scuba diving in caves and caverns using open circuit, side mount and rebreathers. (English Edition) eBook : Heinerth, Jill: Amazon.it:
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Cave Diving Manual by Sheck Exley and India F Young, Paperback | Pangobooks