Bureau of Indian Standard <br/><br/>
IS : 1489 Pt I 1991  Portland pozzolana cement specification Pt 1: fly ash based 

 - 3rd 
 - New Delhi  Bureau of Indian Standard  1991 
 - 7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil Engineering
<br/><br/><label>Dewey Class. No.: </label>624  / BU-I