APA (7th ed.) Citation

Conn, C. P. (1988). Promises to keep: The amway phenomenom and how it works. Berkley Books.

Chicago Style (17th ed.) Citation

Conn, Charles Paul. Promises to Keep: The Amway Phenomenom and How It Works. New York: Berkley Books, 1988.

MLA (8th ed.) Citation

Conn, Charles Paul. Promises to Keep: The Amway Phenomenom and How It Works. Berkley Books, 1988.