BURT,Ronald S <br/><br/>
Structural holes/  The social structure of competition 

 - America  Ronald  c 1995. 
 - vii,313p;. 
<br/><br/> Includes; Index,Reference. 
<br/><br/><label>ISBN: </label>067484372 
<br/><br/><label>Dewey Class. No.: </label>338.60