Ruddock, Ralph. <br/><br/>
Evaluatoin :  a consideration of principles and practice / 
Ralp h Ruddock. 
 - Manchester:  University of Manchester  department of adult and hig her education,  1981. 
 - vi,107 P.  22 cm. 
 - Manchester Monographs ;  vol.18 .
<br/><br/>Includes bibliographical references P.104-7 
<br/><br/><label>ISBN: </label>0903717271 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult Education--Evaluation.
<br/><br/><label>Dewey Class. No.: </label>374