Steel and its alternatives . 

 - Geneva :  UN ,  1956 
 - 76, 15p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industry studies<br/>Materials
<br/><br/><label>Dewey Class. No.: </label>338.8  / ECE-5