00635nam a2200205Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 0-521-26620-3 IIA Library 12:21.0 DUF Duffett-Smith, Peter 15224 Astronomy with your personal computer Peter Duffett-Smith Cambridge Cambridge University Press 1985 x, 256p. Astronomy 80 Astronomy and astrophysics thesaurus Data processing 4335 Microcomputers 9969 BK 9054 9054 0 0 0 0 BAN BAN GEN 1987-06-24 0 52:681.31/ DUF 9951 2021-11-05 1987-06-24 BK