Tracy, Brian <br/><br/>
Leadership  the critical difference /  [kit] : 
by Brian Tracy 
 - Chicago :  Ningtingale - Conant Corporation,  [n.d.] 
 - 1 videocassettes, 2 sound cassettes, 1 teacher's guide ;  in container, 32 X 25 X 4 cm. 
 - The effective manager seminar series [kit] .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management<br/>Leadership<br/>Executive ability