Roll, Erich . <br/><br/>
Elements of Economic Theory /  Textual Documents 
Erich Roll. 
 - 1st ed. / 
 - New York :  Oxford university ,  1950. 
 - 276p. :  ill ;  16cm . 
<br/><br/>Bib.,Index 
<br/><br/><label>Subjects--Index Terms: </label>Economics T/G-Economics Theory 
<br/><br/><label>Dewey Class. No.: </label>330