Those are excellent, and presumably are included in his book: <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;Modern-Survival-Manual-Surviving-Economic&#x2F;dp&#x2F;9870563457&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;Modern-Survival-Manual-Surviving-Econo...</a> (which I&#x27;ve bought but not yet read).