Patton Michael Quinn <br/><br/>
Practical evaluation. 

 - London  Sage Publications        1982 
 - 319p.  cm. 
<br/><br/><label>Standard No.: </label>39900 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>S:71, M2