Cita APA (7th ed.)

Gemmell, D. (1985). The king beyond the gate. Del Rey Books.

Cita Chicago (17th ed.)

Gemmell, David. The King Beyond the Gate. New York: Del Rey Books, 1985.

Cita MLA (8th ed.)

Gemmell, David. The King Beyond the Gate. Del Rey Books, 1985.