APA (7th ed.) Citation

Sheldon, S. (2001). The sky is falling. Harper Collins.

Chicago Style (17th ed.) Citation

Sheldon, Sidney. The Sky Is Falling. London: Harper Collins, 2001.

MLA (8th ed.) Citation

Sheldon, Sidney. The Sky Is Falling. Harper Collins, 2001.

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