Colton, David <br/><br/>
Designing and constructing instruments for social research and evaluation / 
David Colton and Robert W. Covert  
 - San Francisco :  Wiley,  2007. 
 - xvi, 394 p. :  23 cm. 
<br/><br/>Including index and reference. 
<br/><br/><label>ISBN: </label>9780787987848 
<br/><br/><label>Dewey Class. No.: </label>300.72  / COL/D