Catalogue of Cometary Orbits 1960 :  EQUINOX 1950.0 / 
ed.by J.G.Porter 
 - London :  British Astronomical Association,  196o 
 - 97 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Subjects--Index Terms: </label>Cometary Orbits-Catalogue 
<br/><br/><label>Dewey Class. No.: </label>B1102C31f399