APA Style
Ling, Judy. (2001).
Orang-Utans .
:
MPH Education.
Chicago Style
Ling, Judy.
Orang-Utans.
:
MPH Education,
2001.
Text.
MLA Style
Ling, Judy.
Orang-Utans.
:
MPH Education,
2001.
Text.
Turabian Style
Ling, Judy.
Orang-Utans.
:
MPH Education,
2001.
Print.