APA (7th ed.) Citation

Davis, W. S. (1981). Information processing systems (2nd. ed.). Addison-Wesley Publishing Co.

Chicago Style (17th ed.) Citation

Davis, William S. Information Processing Systems. 2nd. ed. Massachussets: Addison-Wesley Publishing Co, 1981.

MLA (9th ed.) Citation

Davis, William S. Information Processing Systems. 2nd. ed. Addison-Wesley Publishing Co, 1981.