Kleppner Otto <br/><br/>
Advertising procedure 

 - 4 
 -  1950 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Advertising
<br/><br/><label>Dewey Class. No.: </label>X:513, J0-J0;1