Blalock Hubert M Ed. <br/><br/>
Methodology in social research 

 - New York, USA  McGraw-Hill Book Company  1968 
 - 493p 
 - McGraw-Hill series in sociology .
<br/><br/><label>Source: </label>Books to be hide in OPAC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methods