APA (7th ed.) Citation

British Science Fantasy Society, Willis, W. A., White, J., & Merritt, D. (1948). Slant. Walter A. Willis.

Chicago Style (17th ed.) Citation

British Science Fantasy Society, Walter A. Willis, James White, and Dick Merritt. Slant. Belfast, Northern Ireland: Walter A. Willis, 1948.

MLA (9th ed.) Citation

British Science Fantasy Society, et al. Slant. Walter A. Willis, 1948.