"Beverly R. Dixon","Gary D. Bouma","G. B. J. Atkinson" <br/><br/>
Handbook of social science research 

 -  Oxford [Oxfordshire] ; Oxford University Press, 1987.  1992 
 - 219 
<br/><br/><label>ISBN: </label>0198780230 
<br/><br/><label>Dewey Class. No.: </label>300  / 1510