Dynamics of comets  proceedings of the 83rd colloquium of the international Astronomical Union on dynamics of comets, held in Rome, Italy, 11-15 June 1984 
edited by Andrea Carusi and G. B. Valsecchi 
 - Dordrecht  D. Reidel Publishing  1985 
 - [various pagings.] 
<br/><br/><label>ISBN: </label>90-277-2047-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics thesaurus<br/>Comets
<br/><br/><label>Universal Decimal Class. No.: </label>52(082.1)  / ASS-115