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Improving supervisory perfomance   
Bittel, Lester R 
 - New York  McGraw Hill  1976 
 - 404 p.  24 cm.  PB 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Supervisory Management
<br/><br/><label>Dewey Class. No.: </label>658.302  / BIT