Gaya APA
Zeilik, Michael. (1988).
Astronomy The Evoling Universe (5th.Ed).
New York:
John Wiley & Sons.
Gaya Chicago
Zeilik, Michael.
Astronomy The Evoling Universe.
5th.Ed
New York:
John Wiley & Sons,
1988.
Text.
Gaya MLA
Zeilik, Michael.
Astronomy The Evoling Universe.
5th.Ed
New York:
John Wiley & Sons,
1988.
Text.
Gaya Turabian
Zeilik, Michael.
Astronomy The Evoling Universe.
5th.Ed
New York:
John Wiley & Sons,
1988.
Print.