Citazione Stile APA (7a Edizione)

Davis, W. S. (1981). Information processing systems (2nd ed.).

Citazione stile Chigago Style (17a edizione)

Davis, William S. Information Processing Systems. 2nd ed. Reading, Mass. ; Addison-Wesley, 1981.

Citatione MLA (9a ed.)

Davis, William S. Information Processing Systems. 2nd ed. 1981.