Cowles, Alfred and Others <br/><br/>
Common-stock indexes   

 - Bloomington  Principia Press  1939 
 - xiv, 499p. 
 - Cowels commission for research in Economics    no.3 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>338.528  / C875.CC