Penggayaan APA
National Geographic Indonesia. (2014).
:
Kompas Gramedia.
Chicago Style
National Geographic Indonesia.
.
:
Kompas Gramedia,
2014.
Text.
MLA Style
National Geographic Indonesia.
.
:
Kompas Gramedia,
2014.
Text.
Turabian Style
National Geographic Indonesia.
:
Kompas Gramedia,
2014.
Print.