David Nachmias <br/><br/>
Research methods in the social sciences / 
by David Nachmias and Chava Nachmias 
 - London :  Edward arnold,  1976. 
 - 511p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research
<br/><br/><label>Dewey Class. No.: </label>001.42  / NAC.R