FRANK, R. H. <br/><br/>
Principle of Economics. 

 - 3rd Ed. 
 - New york,  Mc Graw-Hill,  2007. 
 - xxxix,901p.: ill.; figure, graph, picture, table.  Glossary & Index  28cm. 
<br/><br/><label>ISBN: </label>978-0-07-312567-1 
<br/><br/><label>Dewey Class. No.: </label>330 FRA