Vance Harlow, "Oxygen Hacker's Companion"
English | 2009 | ISBN: 0967887321 | 166 pages | PDF | 40.8 MB
English | 2009 | ISBN: 0967887321 | 166 pages | PDF | 40.8 MB
The Complete and Unauthorized Sourcebook on the Handling and Use of Oxygen, Nitrox and Trimix, for Dive, Aviation and Emergency Use.