APA

Clarke A. C., . (1991). Beyond the fall of night. New York: Ace Books.

Chicago

Clarke Arthur Charles, . 1991. Beyond the fall of night. New York: Ace Books.

Harvard

Clarke A. C., . (1991). Beyond the fall of night. New York: Ace Books.

MLA

Clarke Arthur Charles, . Beyond the fall of night. New York: Ace Books. 1991.