APA

Silver G. A., Silver J. B., . (1981). Data processing for business. New York: Harcourt Brace Jovanovich.

Chicago

Silver Gerald A, Silver Joan B, . 1981. Data processing for business. New York: Harcourt Brace Jovanovich.

Harvard

Silver G. A., Silver J. B., . (1981). Data processing for business. New York: Harcourt Brace Jovanovich.

MLA

Silver Gerald A, Silver Joan B, . Data processing for business. New York: Harcourt Brace Jovanovich. 1981.