Judd, Charles M. <br/><br/>
Estimating the effects of social interventions / 
Charles M. Judd and David A. Kenny. 
 - Cambridge ;  New York :  Cambridge University Press,  1981. 
 - xii, 243 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 230-238. 
<br/><br/><label>ISBN: </label>0521229758 0521297559 (pbk) 
<br/><br/><label>LCCN: </label>81002405 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action programs)--United States<br/>Social sciences--Research--United States