Ruane, Janet M. <br/><br/>
Essentials of research methods :  a guide to social science research / 

 - USA :  Blackwell Publishing,  c2005. 
 - xi, 239 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780631230496 
<br/><br/><label>LC Class. No.: </label>22671-22675 
<br/><br/><label>Dewey Class. No.: </label>300.72  / RUA