APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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