APA (7th ed.) Citation

Van Vogt, A. E. (1980). Cosmic encounter. Doubleday.

Chicago Style (17th ed.) Citation

Van Vogt, A. E. Cosmic Encounter. Garden City, N.Y.: Doubleday, 1980.

MLA (9th ed.) Citation

Van Vogt, A. E. Cosmic Encounter. Doubleday, 1980.