Goyder John <br/><br/>
Silent minority    Nonrespondents on sample surveys    
Goyder John 
 - Cambridge  Polity Press           1987 
 - vii,232p  cm. 
<br/><br/> Bibliography P204-227 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Yb4, M7