Cropp J. A. D. <br/><br/>
Trade in innovation 

 - London  Wiley         1970 
 - 134p.  cm. 
<br/><br/><label>Standard No.: </label>64789 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X9:(Z,2673), L0