Pawson, Ray,  1948- <br/><br/>
Realistic evaluation / 
Ray Pawson and Nick Tilley. 
 - London :  SAGE,  1997. 
 - xvii, 235 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. [221]-227) and index. 
<br/><br/><label>ISBN: </label>0761950095 (pbk.)  RM125.94 
<br/><br/><label>LCCN: </label>97-065723 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs).<br/>Evaluation.