APA (7th ed.) Citation

Gann, E. K. (1978). A hostage to fortune. Knopf.

Chicago Style (17th ed.) Citation

Gann, Ernest Kellogg. A Hostage to Fortune. New York: Knopf, 1978.

MLA (9th ed.) Citation

Gann, Ernest Kellogg. A Hostage to Fortune. Knopf, 1978.