Gaya APA
Facts For Life. (1993).
New York:
UNICEF, WHO,UNISCO.
Gaya Chicago
Facts For Life.
cet.1.
New York:
UNICEF, WHO,UNISCO,
1993.
Text.
Gaya MLA
Facts For Life.
cet.1.
New York:
UNICEF, WHO,UNISCO,
1993.
Text.
Gaya Turabian
Facts For Life.
New York:
UNICEF, WHO,UNISCO,
1993.
Print.