COOK Thomas D <br/><br/>
Quasi- Experimentation  Design and Anaysis Issues for Field Settings 
Thomas D. Cook 
 - Boston  Houghton Mifflin Company  c1979 
 - xii,405p.:  ill,chats,graphs 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0395307902 
<br/><br/><label>Dewey Class. No.: </label>001.4