Gaya APA
Essential atlas of astronomy. (2007).
tempaterbit:
penerbit.
Gaya Chicago
Essential atlas of astronomy.
Edisi.
tempaterbit:
penerbit,
2007.
Text.
Gaya MLA
Essential atlas of astronomy.
Edisi.
tempaterbit:
penerbit,
2007.
Text.
Gaya Turabian
Essential atlas of astronomy.
tempaterbit:
penerbit,
2007.
Print.