Roy, A. E. (Archie Edminston). <br/><br/>
Orbital motion 
A.E. Roy. 
 - Bristol:  Adam Hilger,  1978. 
 - 489 p. :   ill. ;   24 cm. 
<br/><br/><label>ISBN: </label>085274322X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orbits