APA Style
National Geographic Alam pikiran satwa. (2009).
:
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Chicago Style
National Geographic Alam pikiran satwa.
.
:
,
2009.
Text.
MLA Style
National Geographic Alam pikiran satwa.
.
:
,
2009.
Text.
Turabian Style
National Geographic Alam pikiran satwa.
:
,
2009.
Print.