APA (7th ed.) Citation

unknown. (2009). Flip the Flaps Planet Earth. Unknown.

Chicago Style (17th ed.) Citation

unknown. Flip the Flaps Planet Earth. Unknown, 2009.

MLA (9th ed.) Citation

unknown. Flip the Flaps Planet Earth. Unknown, 2009.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.