General study for portland cement. 

 - Karachi :  IACP ,  1966 
 - 16p. :  ill. ;  26 cm. 
 - K-348-P .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cement industry--Pakistan
<br/><br/><label>Dewey Class. No.: </label>691.5  / IACP