Porter, Robert W. <br/><br/>
Making a difference to policies and programs :  a guide for resear chers / 
Robert W. Porter, Suzanne Prysor-Jones 
 - Washington, D.C. :  Academy for Educational Development,  1997 
 - x, 50 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research
<br/><br/><label>Dewey Class. No.: </label>MISR 001.4 MAK