Clark, Mark W.  1896-1984. <br/><br/>
Calculated risk. 

 - [1st ed.] 
 - New York,  Harper  [1950] 
 - 500 p.  22 cm. 
<br/><br/><label>LCCN: </label>unk81031375  
<br/><br/><label>LC Class. No.: </label>D766.82  / .C5