Fitzpatrick, Philip M. <br/><br/>
Principles of celestial mechanics/ 
Philip M. Fitzpatrick. 
 - New York:  Academic Press,  [1970]. 
 - xvii, 405 p.:  illus.,  25 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>012257950X 
<br/><br/><label>LCCN: </label>77119612 //r922 
<br/><br/><label>Nat. Bib. No.: </label>GB70-23112 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Celestial mechanics.
<br/><br/><label>Dewey Class. No.: </label>521.1   / F559p