APA

Clark M. H., . (1989). While My Pretty One Sleeps. New York: Pocket Books.

Chicago

Clark Mary Higgins, . 1989. While My Pretty One Sleeps. New York: Pocket Books.

Harvard

Clark M. H., . (1989). While My Pretty One Sleeps. New York: Pocket Books.

MLA

Clark Mary Higgins, . While My Pretty One Sleeps. New York: Pocket Books. 1989.