Borden, Louise. <br/><br/>
Sea clocks :  the story of longitude / 
by Louise Borden ; illustrated by Erik Blegvad. 
 - New York :  Margaret K. McElderry Books,  2003. 
 - 1 v. (unpaged) ; col. ill.      26 cm. 
<br/><br/> 4-6 
<br/><br/><label>ISBN: </label>0689842163 
<br/><br/><label>LCCN: </label>00045599 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventors.<br/>Clocks and watches.<br/>Longitude.<br/>Chronometers--History.
<br/><br/><label>LC Class. No.: </label>QB107  / .B75 2003 
<br/><br/><label>Dewey Class. No.: </label>526/.62/09