Cook, Thomas D. <br/><br/>
Quasi-experimentation :   design & analysis issues for field settin gs /  
Thomas D. Cook, Donald T. Campbell ; [project editor, Gayle Fan khauser ; cover illustrator, Arles Day]. 
 - Chicago :   Rand McNally College Pub. Co.,   c1979. 
 - xii, 405 p. :    ill. ;    23 cm. 
<br/><br/>  Includes index. 
<br/><br/>Includes bibliographical references (p. 387-396). 
<br/><br/><label>ISBN: </label>0528620533 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences --Research.------<br/>Social sciences --Field work.------
<br/><br/><label>Dewey Class. No.: </label>519.3