McKay, C. W. (1978). An introduccion to the architecture microprocessors and structure microcomputer systems: A third level book of concepts, problems and experiments in digital systems.

McKay, Charles W. An Introduccion to the Architecture Microprocessors and Structure Microcomputer Systems: A Third Level Book of Concepts, Problems and Experiments in Digital Systems. Woburn, Mass. : Hickok Teaching System Inc, 1978.

McKay, Charles W. An Introduccion to the Architecture Microprocessors and Structure Microcomputer Systems: A Third Level Book of Concepts, Problems and Experiments in Digital Systems. 1978.