Babbie, Earl R <br/><br/>
The practice of social research 

 - 8th ed. 
 - Belmont  Wadsworth Publishing Company  1998 
 - xxiv, variant pagings : ill. 
<br/><br/> Bibliography 
<br/><br/><label>ISBN: </label>053450468X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RESEARCH COLLABORATION<br/>SOCIAL SCIENCES--RESEARCH 
<br/><br/><label>LC Class. No.: </label>H 62 Bab