Gaya APA
Arny, Thomas T.. (2008).
Explorations an Introduction to Astronomy .
New York:
McGraw hill.
Gaya Chicago
Arny, Thomas T..
Explorations an Introduction to Astronomy.
New York:
McGraw hill,
2008.
Text.
Gaya MLA
Arny, Thomas T..
Explorations an Introduction to Astronomy.
New York:
McGraw hill,
2008.
Text.
Gaya Turabian
Arny, Thomas T..
Explorations an Introduction to Astronomy.
New York:
McGraw hill,
2008.
Print.