APA Style
National Geographic Indonesia Jun-Des 08. (2008).
Jakarta:
Gramedia.
Chicago Style
National Geographic Indonesia Jun-Des 08.
.
Jakarta:
Gramedia,
2008.
.
MLA Style
National Geographic Indonesia Jun-Des 08.
.
Jakarta:
Gramedia,
2008.
.
Turabian Style
National Geographic Indonesia Jun-Des 08.
Jakarta:
Gramedia,
2008.
.