Introductory astronomy & astrophysics
Michael Zeilik · Thomson Learning · 1998
Wikipedia
{{cite book |last=Zeilik |first=Michael |title=Introductory astronomy & astrophysics |publisher=Thomson Learning |year=1998 |isbn=9780030062285}}
Michael Zeilik · Thomson Learning · 1998
{{cite book |last=Zeilik |first=Michael |title=Introductory astronomy & astrophysics |publisher=Thomson Learning |year=1998 |isbn=9780030062285}}