APA (7th ed.) Citation

Clark, M. H. (1977). A stranger is watching. Simon and Schuster.

Chicago Style (17th ed.) Citation

Clark, Mary Higgins. A Stranger Is Watching. New York: Simon and Schuster, 1977.

MLA (8th ed.) Citation

Clark, Mary Higgins. A Stranger Is Watching. Simon and Schuster, 1977.

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