Gall, Meredith D <br/><br/>
Educational research   an introduction  
Meredith D Gall 
 - 5th 
 - NewYork   Longman  1989 
<br/><br/><label>ISBN: </label>9780801303340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education-Research-Methodology
<br/><br/><label>LC Class. No.: </label>LB 1028 .B67 1989