Trochim William M K <br/><br/>
Research design for program evaluation    the regression discontinuity approach 

 - New Delhi  Sage Publications India       1984 
 - 272 p.  cm. 
 - Contemporary Evaluation Research : A series of books on applied social science .
<br/><br/><label>Standard No.: </label>18535 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> RESEARCH METHODS<br/>SOCIAL SCIENCES
<br/><br/><label>Dewey Class. No.: </label>Sigma:f, M4