Rossi,P.H <br/><br/>
Evalution  a systematic approach 
H Rossi 
 - London  SAGE  1979 
<br/><br/><label>ISBN: </label>0-8039-1179-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences
<br/><br/><label>LC Class. No.: </label>H 62 .R671