Free innovation 
von Hippel, Eric. 
 -  The MIT Press,  2016 
 - 244 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>978-0-262-03521-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Innovation.
<br/><br/><label>Dewey Class. No.: </label>338.064 V9468 2016