Basic Cave Diving: A Blueprint for Survival (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Basic Cave Diving: A Blueprint for Survival" in English language version.

refsWebsite
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bernil.wordpress.com

nsscds.org

padi.com

tecrec.padi.com

xray-mag.com

  • Lunn, Rosemary E. (14 May 2018). "Exley's "Blueprint" Available Free". xray-mag.com. Retrieved 9 August 2019.