APA (7th ed.) Citation

Van Vogt, A. E. (1975). Empire of the atom. New English Library.

Chicago Style (17th ed.) Citation

Van Vogt, A. E. Empire of the Atom. London: New English Library, 1975.

MLA (8th ed.) Citation

Van Vogt, A. E. Empire of the Atom. New English Library, 1975.