APA Style
Sagan, Carl. (2013).
Cosmos .
New York:
Ballantine Books.
Chicago Style
Sagan, Carl.
Cosmos.
New York:
Ballantine Books,
2013.
Text.
MLA Style
Sagan, Carl.
Cosmos.
New York:
Ballantine Books,
2013.
Text.
Turabian Style
Sagan, Carl.
Cosmos.
New York:
Ballantine Books,
2013.
Print.