Roger Sapford <br/><br/>
Survey research/ 
by Roger Sapford 
 - 2nd 
 - London:  Sage,  2007. 
 - 276p. 
<br/><br/><label>ISBN: </label>9781412912310 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Survey Research<br/>Research Statistical Method
<br/><br/><label>Dewey Class. No.: </label>001.433  / ROG/S