描述
Information about conserving the air in your scuba diving tank. E-book for using breathing, equipment selection, and gear trimming techniques for longer scuba diving adventures. Save scuba air - make your dives last longer.
書籍詳情
格式
Kindle
頁數
70 頁
語言
英語
已出版
Jul 11, 2012
出版商
Free Spirit Enterprises LLC