00897nam0-22003491i-450 99000082727040332120220908084655.00-471-35820-7000082727FED01000082727(Aleph)000082727FED0120001010d1973----km-y0itay50------baengy-------001yyAstrophysical conceptsM. HarwitNew YorkJohn Wiley & Sons1973XIV, 561 p.24 cmAstrofisicaAstronomiaCosmologia523Harwit,Martin40443ITUNINARICAUNIMARCBK99000082727040332102 60 A 172417FINBN19-223.00225321FI1FINBNING01FI1Astrophysical Concepts338329UNINA