00811nam a2200217Ia 4500003000900000008004100009040001600050080002300066111008100089245015400170260006800324300001600392490002700408650002700435650001900462650002400481650001800505650001500523700001800538710003700556IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a523.64(082.2)bDON  aInternational Astronomical Union Colloquiumn25thcUSAd1974 Oct 28- Nov. 11 4aThe study of cometsbpt. 2, proceedings of IAU colloquium; no. 25 held in Maryland, USA, 28 Oct - 11 Nov 1974cedited by B. Donn                       aWashingtonbNational Aeronautics and Space Administrationc1976  aviii, 546p.  aIAU colloquium; no. 25  aComet data collections  aComet Kohoutek  aCometary atmosphere  aIsophotometry  aPhotometry  aDonn, B., ed.  aInternational Astronomical Union