Oppenheim A N Abraham Naftali 1924 <br/><br/>
Questionnaire Design Interviewing And Attitude Measurement A N Oppenheim 

 -  London : Continuum 2000. 
 - 303 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>1855670437 (Hbk.);0826451764 (Pbk.)