Ruane, Janet M. <br/><br/>
Essentials of research methods :  a guide to social research / 
Janet M. Ruane 
 - Malden, MA :  Blackwell Publishing,  2005. 
 - 239 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0631230491 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research<br/>Social sciences--Statistical methods