Gaya APA
Zeilik, Michael. (2002).
Astronomy the evolving universe: ninth edition .
USA:
Cambridge Univesity Press.
Gaya Chicago
Zeilik, Michael.
Astronomy the evolving universe: ninth edition.
USA:
Cambridge Univesity Press,
2002.
Text.
Gaya MLA
Zeilik, Michael.
Astronomy the evolving universe: ninth edition.
USA:
Cambridge Univesity Press,
2002.
Text.
Gaya Turabian
Zeilik, Michael.
Astronomy the evolving universe: ninth edition.
USA:
Cambridge Univesity Press,
2002.
Print.