Cement/nitrogenous fertilizers based on natural gas. 

 - New York :  UN ,  1963 
 - vii, 39p. :  ill. ;  25 cm. 
 - Studies in economics of industry .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cement industry<br/>Industry studies
<br/><br/><label>Dewey Class. No.: </label>691.5  / UN