



Revised edition. Shelf and handling wear to cover and binding, with general signs of previous use. Clean, unmarked pages. Secure packaging for safe delivery.
Not made on this Earth:--"You are relating our physics to their crafts - can't do that. That was our mistake for many years. To get into outer space, they use THEIR system. To understand their system, you must understand their physics..." --Aside: The folks at Area 51 and Los Alamos call the UFO propulsion...