Encarnacion, Elizabeth. <br/><br/>
Skyscrapers / 
Elizabeth Encarnacion. 
 - Laguna Hills, CA :  QEB Pub.,  c2007. 
 - 36 p. :  col. ill. ;  30 cm. 
 - Buildings at work .
<br/><br/>Includes bibliographical references ( p. 35) and index. 
<br/><br/>Skyscrapers -- Early skyscrapers -- The world's tallest -- Super skyscrapers -- Twin towers -- Steel frames -- Reinforced concrete -- Cross-bracing -- Fighting nature -- Extreme temperatures -- Green skyscrapers -- Special skyscrapers -- Tall towers. 
<br/><br/><label>ISBN: </label>9781595663719 
<br/><br/><label>LCCN: </label>2006038444 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Skyscrapers--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>TH149  / .E53 2007 
<br/><br/><label>Dewey Class. No.: </label>