01152nam a2200277Ia 4500003000900000008004100009040001600050080002300066111008500089245021600174260006800390300001500458490004100473500002600514650004100540650001600581700001800597700003100615700002900646700002100675700001900696710003800715942000700753999001500760952009900775IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a523.64(082.2)bDON  aInternational Astronomical Union Colloquiumn25thcMarylandd1974 Oct. 28-Nov. 1 4aThe study of cometsbpt. 1, proceedings of IAU colloquium No.25 held at Goddard Space Flight center, Greenbelt, Maryland October 28-November 1,1974cedited by Donn, B....[et al.]                                   aWashingtonbNational Aeronautics and Space Administrationc1976  axii, 536p.  aNASA SP; 393, IAU Colloquium; no. 25  aDonated by Mrs. Bappu  aAstronomy and Astrophysics Thesaurus  aComets9755  aDonn, B., ed.  aHarrington, R., ed.912984  aHearn, M. A., ed.912985  aJackson, W., ed.  aMumma, M., ed.  aInternational Astronomical Union   cBK  c7674d7674  00104070aBANbKAVcGENd1983-07-26l0o523.64(082.2)/ DONp8488r2021-11-05w1983-07-26yBK