Salvadori, Mario George. <br/><br/>
Why buildings stand up :  the strength of architecture / 
Mario Salvadori ; illustrations by Saralinda Hooker and Christopher Ragus. 
 - New York :  Norton,  1990. 
 - 232 p. :  ill. ;  24 cm. 
<br/><br/> Includes index.  "First published as a Norton paperback 1990" 
<br/><br/>Structures -- The pyramids -- Loads -- Materials -- Beams and columns -- Houses -- Skyscrapers -- The Eiffel Tower -- Bridges -- The Brooklyn Bridge -- Form-resistant structures -- The unfinished cathedral -- Domes -- Hagia Sophia -- Tents and balloons -- The hanging sky -- The message of struture. 
<br/><br/><label>ISBN: </label>0393306763  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Structural engineering
<br/><br/><label>LC Class. No.: </label>TA633