APA Style

Schreiber, Anne. (2009). Penguins! (National Geographic Kids Level 2) . Washington D.C: National Geographic Society.

Chicago Style

Schreiber, Anne. Penguins! (National Geographic Kids Level 2). Washington D.C: National Geographic Society, 2009. .

MLA Style

Schreiber, Anne. Penguins! (National Geographic Kids Level 2). Washington D.C: National Geographic Society, 2009. .

Turabian Style

Schreiber, Anne. Penguins! (National Geographic Kids Level 2). Washington D.C: National Geographic Society, 2009. .