Susan Weller <br/><br/>
Systematic data collection/ 
by Susan Weller 
 - California:  Sage,  1987. 
 - 95p. 
<br/><br/><label>ISBN: </label>9780803930742 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methods Social Sciences<br/>Social Sciences Field Work <br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>300.723  / SUS/S