Ryabov, Y <br/><br/>
An elementary of celestial mechanics 
Ryabov, Y   
 - New York  Dover Publications  1959 
 - 164p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and astrophysics thesaurus<br/>Celestial mechanics
<br/><br/><label>Universal Decimal Class. No.: </label>521.1  / RYA