Trochim, William M.K. <br/><br/>
Research methods knowlege base 
by William M.K. Trochim and James P. Donnelly 
 - 3rd ed. 
 - USA  Cengage learning  2008 
 - xv, 361 p. 
<br/><br/><label>ISBN: </label>1592602908 
<br/><br/><label>Subjects--Topical Terms: </label>--Methodology
<br/><br/><label>LC Class. No.: </label>Q180.55  / .M4T76 2008 C.1