The Motion, evolution of orbits, and origin of comets  proceedings of the IAU symposium No.45, held in Leningard, USSR, August 4-11, 1970 
edited by G. A. Chebotarev, E. I. Kazimirchak-Polanskaya and B. G. Marsdem 
 - Dordrecht  D. Reidel Publishing  1972 
 - xxiii, 521p. 
 - IAU Symposium; no. 45 .
<br/><br/><label>ISBN: </label>0-387-91103-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Comets<br/>Orbital Motions<br/>Stellar Motion
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / IAU-S45