Vockell, Edward L. <br/><br/>
Educational research / 
Edward L. Vockell. 
 - New York :;London :  Macmillan ;;Collier Macmillan,  c1983. 
 - viii, 392 p. :  ill.   26 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>24230707 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research.
<br/><br/><label>Universal Decimal Class. No.: </label>370.78