If you want to know Rothbard on anything then use the search function on Lew Rockwell.com. It’s a great starting place if you want to know the libertarian perspective on an issue.
http://www.google.com/cse?cx=003957976021531095527%3Afocviubplue&ie=UTF-8&q=Murray+rothbard+machinary+of+freedo&sa=Search&siteurl=www-open-opensocial.googleusercontent.com%2Fgadgets%2Fifr%3Furl%3Dhttp%253A%252F%252Fwww.google.com%252Fcse%252Fapi%252F003957976021531095527%252Fcse%252Ffocviubplue%252Fgadget%26container%3Dopen%26view%3Dhome%26lang%3Dall%26country%3DALL%26debug%3D0&ref=www.lewrockwell.com%2F&ss=9445j4313775j45#gsc.tab=0&gsc.q=Murray%20rothbard%20machinery%20of%20freedom
