APA

Forsyth F., . (1984). The fourth protocol. New York, N.Y: Viking.

Chicago

Forsyth Frederick, . 1984. The fourth protocol. New York, N.Y: Viking.

Harvard

Forsyth F., . (1984). The fourth protocol. New York, N.Y: Viking.

MLA

Forsyth Frederick, . The fourth protocol. New York, N.Y: Viking. 1984.