Tuckman, Bruce W.,  1938- <br/><br/>
Conducting educational research / 
Bruce W. Tuckman 
 - 2nd ed. 
 - New York :  Harcourt Brace Jovanovich,  1978 
 - xvi, 479 p. :  ill. ;  25 cm. 
<br/><br/> Includes indexes 
<br/><br/>Bibliography: p. 395-399 
<br/><br/><label>ISBN: </label>0155129813 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational research