APA (7th ed.) Citation

Close, F. E. (1988). Apocalypse when?: Cosmic catastrophe and the fate of the universe (1st U.S. ed.). Morrow.

Chicago Style (17th ed.) Citation

Close, F. E. Apocalypse When?: Cosmic Catastrophe and the Fate of the Universe. 1st U.S. ed. New York: Morrow, 1988.

MLA (9th ed.) Citation

Close, F. E. Apocalypse When?: Cosmic Catastrophe and the Fate of the Universe. 1st U.S. ed. Morrow, 1988.