Sapsford,Roger <br/><br/>
Data collection and analysis 

 - London  Sage,  1996 
 - 323p.;  24cm 
<br/><br/><label>ISBN: </label>761943633 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reserch
<br/><br/><label>Dewey Class. No.: </label>001.4  / SAP