Cook T D <br/><br/>
Quasi experimentation; Design and analysis isssues for field settings 

 - Chicago  Rand Macnally        1979 
 - xii, 405p.  cm. 
<br/><br/><label>Standard No.: </label>83,968 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PYSCHOLOGY - EXPERIMENTAL METHODS
<br/><br/><label>Dewey Class. No.: </label>SM, L9-;2