OPPENHEIM, A. N. <br/><br/>
Questionnaire Design and Attitude Measurement 

 - London,  Heinemann,  1982. 
 - ix, 298p.: ill.; figure, table.  Index.  21cm. 
<br/><br/><label>ISBN: </label>0 435 82676 X 
<br/><br/><label>Dewey Class. No.: </label>658. 312 OPP