00653nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library (035)52 IRA National Optical Astronomy Observatories 18420 IRAF user handbook vol. 2B, user's guides/KPNO cookbooks National Optical Astronomy Observatories Tucson National Optical Astronomy Observatories 1989 [various pagings.] Astronomy-Computer programs 18421 Image processing 6569 Imaging systems in astronomy 18422 BK 10778 10778 0 0 0 0 BAN BAN GEN 1993-08-16 0 (035)52/ IRA 11690 2021-11-05 1993-08-16 BK