Lerbinger, Otto. <br/><br/>
Key to the executive head / 
Otto Lerbinger, Nathaniel H. Sperber. 
 - Reading, Mass. :  Addison-Wesley,  1975. 
 - iv, 156 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0201042584 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Executives--United States.