Social work research methods:  Qualitative and quantitative approaches 
W.Lawrence Neuman and Larry  W.Kreuger 
 - Boston  Allyn and Bacon  c2003 
 - xv,624p.:  ill; 
<br/><br/> Includes Bibliographical references and index 
<br/><br/><label>ISBN: </label>0205299148 
<br/><br/><label>LC Class. No.: </label>HV11  / .N483 2003