Heron, A. M. <br/><br/>
Directory of the economic minerals of Pakistan / 
A. M. Heron 
 - Karachi :  Manager of Publications,  1950 
 - 70 p. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Pakistan.
<br/><br/><label>Dewey Class. No.: </label>549  / HED 1950