Ferber Robert <br/><br/>
Research methods in economics and business 
Ferber Robert; Verdoorn P J 
 -  1962 
<br/><br/><label>Standard No.: </label>854 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X:f, K2