Neuman, William Lawrence, <br/><br/>
Social research methods :  qualitative and quantitative approaches / 
W. Lawrence Neuman 
 - Fourth Edition 
 - xiv, 558 pages :  illustrations ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0205297714 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology--Research--Methodology<br/>Social sciences--Research--Methodology