APA Style
Schreiber, Anne. ().
National Geographic Kids: Penguins! .
:
.
Chicago Style
Schreiber, Anne.
National Geographic Kids: Penguins!.
:
,
.
Text.
MLA Style
Schreiber, Anne.
National Geographic Kids: Penguins!.
:
,
.
Text.
Turabian Style
Schreiber, Anne.
National Geographic Kids: Penguins!.
:
,
.
Print.