The Planispheric astrolabe / 
Dept. of Navigation and Astronomy, National Maritime Museum, Greenwich. 
 - 56 pages :  illustrations ;  25 cm 
<br/><br/> "First published 1976 ... Reprinted 1989." 
<br/><br/>Includes bibliographical references (page 55) and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astrolabes.<br/>Astrolabes.
<br/><br/><label>Subjects--Index Terms: </label>Astronomy United Kingdom Astrolabe planspheric Waters D.W. Scientific instrument