APA

Powell C., Forde G., . (1995). The self-hypnosis book. New York: Penguin Books.

Chicago

Powell Cherith, Forde Greg, . 1995. The self-hypnosis book. New York: Penguin Books.

Harvard

Powell C., Forde G., . (1995). The self-hypnosis book. New York: Penguin Books.

MLA

Powell Cherith, Forde Greg, . The self-hypnosis book. New York: Penguin Books. 1995.