Babble,Earl <br/><br/>
The practice of Social Research/  English 
Earl Babble 
 - 4th ed. 
 - California:  Wadsworth,  1986. 
 - xxii,277p.:  bib.,index;  23 cm. 
<br/><br/><label>ISBN: </label>0534053405658x 
<br/><br/><label>Subjects--Index Terms: </label>Research Methodology 
<br/><br/><label>Dewey Class. No.: </label>001.42  / BAB