Singleton, Royce. <br/><br/>
Approaches to social research / 
Royce A. Singleton, Jr., Bruce C. Straits. 
 - 3rd ed. 
 - New York :  Oxford University Press,  1999. 
 - xix, 618 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0195105257 (alk. paper) 
<br/><br/><label>LCCN: </label>97036851  
<br/><br/><label>LC Class. No.: </label>H62 .S4776 1999  / .S4776 1999 
<br/><br/><label>Dewey Class. No.: </label>300/.72