APA (7th ed.) Citation

Keene,Carolyn. (1998). The Sinister Omen. Harper Collins.

Chicago Style (17th ed.) Citation

Keene,Carolyn. The Sinister Omen. London: Harper Collins, 1998.

MLA (9th ed.) Citation

Keene,Carolyn. The Sinister Omen. Harper Collins, 1998.

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