01268nam a2200301Ia 4500003000900000008004100009040001600050080002500066111008500091245027600176260006800452300001500520490001700535500002600552650004100578650001600619650003200635650002000667700001800687700003100705700002900736700002100765700001900786710003800805942000700843999001500850952010100865IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a524.64(082.2)bDON-2  aInternational Astronomical Union Colloquiumn25thcMarylandd1974 Oct. 28-Nov. 1 4aThe study of cometsbpt. 2, proceedings of the International Astronomical Union Colloquium No.25, Co-sponsored by COSPAR held at Goddard Space Flight Center, Green Belt, Maryland, October 28-November-1, 1974cedited by Donn, B....[et al.]                                   aWashingtonbNational Aeronautics and Space Administrationc1976  a537-1083p.  aNASA SP; 393  aDonated by Mrs. Bappu  aAstronomy and Astrophysics Thesaurus  aComets9755  aLong Periodic Comets912986  aPeriodic Comets  aDonn, B., ed.  aHarrington, R., ed.912987  aHearn, M. A., ed.912988  aJackson, W., ed.  aMumma, M., ed.  aInternational Astronomical Union   cBK  c7675d7675  00104070aBANbBANcGENd1983-07-26l0o524.64(082.2)/ DON-2p8489r2021-11-05w1983-07-26yBK