Hi all
Does anyone know how the 3 guides that Gary Gentile has on wrecks differ? Do they overlap in content or are all three different?
Primary Wreck-Diving Guide
https://www.amazon.com/Primary-Wreck-Diving-Guide-Gary-Gentile/dp/0962145394/
Advanced Wreck Diving Guide
https://www.amazon.com/Advanced-Wreck-Diving-Guide-Gentile/dp/0870333801/
Ultimate Wreck-Diving Guide
https://www.amazon.com/Ultimate-Wreck-Diving-Guide-Gary-Gentile/dp/0962145343/
Thanks!
Does anyone know how the 3 guides that Gary Gentile has on wrecks differ? Do they overlap in content or are all three different?
Primary Wreck-Diving Guide
https://www.amazon.com/Primary-Wreck-Diving-Guide-Gary-Gentile/dp/0962145394/
Advanced Wreck Diving Guide
https://www.amazon.com/Advanced-Wreck-Diving-Guide-Gentile/dp/0870333801/
Ultimate Wreck-Diving Guide
https://www.amazon.com/Ultimate-Wreck-Diving-Guide-Gary-Gentile/dp/0962145343/
Thanks!