Sax, Gilbert <br/><br/>
Foundations of educational research / 
Gilbert Sax 
 - 2nd ed. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1979 
 - xiv, 434 p. :  ill. ;  24 cm. 
<br/><br/> First ed. published in 1968 under title: Empirical foundations of educational research 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0133293009 :  USD  14.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research<br/>Education
<br/><br/><label>Dewey Class. No.: </label>370.78