Dun and Bradstreet, Inc. Business Education Division. (1969). What the manager should know about the computer. T. Y. Crowell Co.
Chicago-viite (17. p.)Dun and Bradstreet, Inc. Business Education Division. What the Manager Should Know About the Computer. New York: T. Y. Crowell Co, 1969.
MLA-viite (9. p.)Dun and Bradstreet, Inc. Business Education Division. What the Manager Should Know About the Computer. T. Y. Crowell Co, 1969.
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