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