Brouwer, Dirk, 1902- <br/><br/>
Methods of celestial mechanics / 
Dirk Brouwer, Gerald M.Clemence 
 - New York :  Academic Press,  1961 
 - 598 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0121356507 
<br/><br/><label>LCCN: </label>60-16909 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanics, Celestial