Calahan, Harold Augustin. <br/><br/>
The sky and the sailor :  a history of celestial navigation / 
Harold Augustin Calahan. 
 - New York :  Harper,  c 1952. 
 - xiii, 262 p. :  ill. ;  21 cm. 
<br/><br/>336  336 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Methodology.<br/>Astronomy.<br/>Marine.
<br/><br/><label>Dewey Class. No.: </label>527 / C125s