-TW
April 14, 2012, 05:32 AM
looks pretty useful...
http://www.amazon.com/Determine-Invention-Profitably-Marketable-Wasting/dp/0967649404
-- TW
http://www.amazon.com/Determine-Invention-Profitably-Marketable-Wasting/dp/0967649404
-- TW
View Full Version : Another good book I found (I have NOT read it though)...