Gaya APA
National Geographic : Raksasa Angkasa November 2017. (2012).
USA:
National Geographic Society.
Gaya Chicago
National Geographic : Raksasa Angkasa November 2017.
.
USA:
National Geographic Society,
2012.
Text.
Gaya MLA
National Geographic : Raksasa Angkasa November 2017.
.
USA:
National Geographic Society,
2012.
Text.
Gaya Turabian
National Geographic : Raksasa Angkasa November 2017.
USA:
National Geographic Society,
2012.
Print.