PDF of Oxygen Hackers Companion 4th Ed by Vance Harlow

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I know this is not a printed - hard copy, however, if you are interested in a PDF copy of Vance Harlow's "Oxygen Hacker's Companion 4th Ed(revised 2009)", here is a link to our GUE friends' site:


This is a great resource for blending and just general knowledge.
Hello everyone, does anyone have this pdf look like the link is not working.
 
https://www.shearwater.com/products/swift/

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