Dull, Lloyd W. (Lloyd William)- <br/><br/>
Supervision--school leadership handbook/ 
Lloyd W. Dull 
 - Columbus, Ohio  C.E. Merrill Pub. Co.  1981 
 - viii, 480 p. ;  26 cm 
<br/><br/>Includes indexes Bibliography: p. 452-458 
<br/><br/><label>Subjects--Topical Terms: </label><br/>School supervision--United States<br/>Leadership