Weller, Susan C. <br/><br/>
Systematic data collection 

 - California  Sage  1988 
 - 96 
<br/><br/><label>ISBN: </label>9780803930742 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences-Research methods
<br/><br/><label>Dewey Class. No.: </label>300.723  / WEL-S