Concrete shell roof construction / 
edited by P. J. Witt 
 - Bombay :  Concrete Association of India,  1954 
 - 67 p. ;  30 cm. 
<br/><br/><label>ISBN: </label> Rs.1.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roofs, Shell--Congresses
<br/><br/><label>Dewey Class. No.: </label>695.3