Bureau of Indian Standard <br/><br/>
SI : 8112 1989  43 grade ordinary portland cement 

 - 1st 
 - New Delhi  Bureau of Indian Standard  1989 
 - 7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical Engineering
<br/><br/><label>Dewey Class. No.: </label>666  / BU-I