Selltiz, Claire,  <br/><br/>
Selltiz, Wrightsman and Cook's research methods in social relations / 
Louise H. Kidder [and three others]. 
 - 4th edition. 
 - Rinehart and Winston, New York:   Published for the Society for the Psychological Study of Social Issues (SPSSI) (by) Holt,   1981. 
 - xii, 483 pages :    illustrations , form ;    25 cm. 
<br/><br/>pages 451-469 
<br/><br/><label>ISBN: </label>0030435668 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociological research.<br/>Sociology--Methodology.