Weller, Susan C. <br/><br/>
Systematic data collection / 
Susan C. Weller & A. Kimbail Romney 
 - New Delhi :  Saga Publications ,  1988 
 - 96p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0803930739 0803930747 
<br/><br/><label>Subjects--Topical Terms: </label><br/>data collection
<br/><br/><label>Dewey Class. No.: </label>300  / WEL