Cita APA (7th ed.)

Forsyth, F. (1979). The devil's alternative. A Corji Book.

Cita Chicago (17th ed.)

Forsyth, Frederick. The Devil's Alternative. London: A Corji Book, 1979.

Cita MLA (9th ed.)

Forsyth, Frederick. The Devil's Alternative. A Corji Book, 1979.