King, Gary Keohane, Robert O. Verba, Sidney <br/><br/>
Designing Social Inquiry  Scientific Interence In Qualitative Research 

 - 1st ed 
 -  Princeton University Press Princeton, New Jersey  1994  1994 
 - ix , 230 p : ill ; 24 cm 
<br/><br/> Includes References And Index 
<br/><br/><label>ISBN: </label>0-691-03471-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography
<br/><br/><label>LC Class. No.: </label>كتب دوائر لا تصنف