Gaya APA
Sagan, Carl. (1997).
Kosmos (1).
:
Yayasan Obor Indonesia.
Gaya Chicago
Sagan, Carl.
Kosmos.
1
:
Yayasan Obor Indonesia,
1997.
Non Fiction.
Gaya MLA
Sagan, Carl.
Kosmos.
1
:
Yayasan Obor Indonesia,
1997.
Non Fiction.
Gaya Turabian
Sagan, Carl.
Kosmos.
1
:
Yayasan Obor Indonesia,
1997.
Non Fiction.