APA Style
Klein, Abby. (2010).
The Penguin Problem (Ready, Freddy!, No. 19) Mass Market Paperback .
New York ::
Scholastic Inc..
Chicago Style
Klein, Abby.
The Penguin Problem (Ready, Freddy!, No. 19) Mass Market Paperback.
New York ::
Scholastic Inc.,
2010.
Text.
MLA Style
Klein, Abby.
The Penguin Problem (Ready, Freddy!, No. 19) Mass Market Paperback.
New York ::
Scholastic Inc.,
2010.
Text.
Turabian Style
Klein, Abby.
The Penguin Problem (Ready, Freddy!, No. 19) Mass Market Paperback.
New York ::
Scholastic Inc.,
2010.
Print.