Gall, Meredith D.,  1942- <br/><br/>
Educational research :  an introduction / 
Meredith D. Gall, Joyce P. Gall, Walter R. Borg. 
 - 7th ed. 
 - xxxi, 656 pages. :  illustrations ;  24 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/>
<br/><br/><label>ISBN: </label>0321081897  RM297.48 9780321081896  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research.<br/>Education--Research--United States.