Gaya APA
Huwirtz, Johanna. (1990).
Class President .
New York:
Scholastic.
Gaya Chicago
Huwirtz, Johanna.
Class President.
New York:
Scholastic,
1990.
Text.
Gaya MLA
Huwirtz, Johanna.
Class President.
New York:
Scholastic,
1990.
Text.
Gaya Turabian
Huwirtz, Johanna.
Class President.
New York:
Scholastic,
1990.
Print.