APA (7th ed.) Citation

Nickelodeon Publishing. (2011). Happy birthday, spongebob!

Chicago Style (17th ed.) Citation

Nickelodeon Publishing. Happy Birthday, Spongebob! 2011.

MLA (8th ed.) Citation

Nickelodeon Publishing. Happy Birthday, Spongebob! 2011.

Warning: These citations may not always be 100% accurate.