APA (7th ed.) Citation

Van Vogt, A. E. (1947). The weapon makers. Hadley publishing co..

Chicago Style (17th ed.) Citation

Van Vogt, A. E. The Weapon Makers. Providence, R. I.: Hadley publishing co., 1947.

MLA (9th ed.) Citation

Van Vogt, A. E. The Weapon Makers. Hadley publishing co., 1947.