Babbie, Earl <br/><br/>
The practice of social research / 
Earl Babbie 
 - 12th ed. 
 - Belmont, CA :  Wadsworth/Cengage Learning,  2010 
 - 1 v. (various pagings) :  ill. ;  24 cm. 
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<br/><br/><label>ISBN: </label>0495598429 (pbk.) 9780495598428 (pbk.)  RM140.54 0495598410 (hbk.) 9780495598411 (hbk.) RM447.64 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research<br/>Social sciences--Methodology