Cita APA (7a ed.)

Clarke, A. C. (1983). The sentinel: Masterworks of science fiction and fantasy. Berkley Books.

Cita Chicago Style (17a ed.)

Clarke, Arthur C. The Sentinel: Masterworks of Science Fiction and Fantasy. New York: Berkley Books, 1983.

Cita MLA (9a ed.)

Clarke, Arthur C. The Sentinel: Masterworks of Science Fiction and Fantasy. Berkley Books, 1983.