Katzan, H. (1976). Systems design and documentation: An introduction to the HIPO method. Van Nostrand Reinhold.
Cita Chicago Style (17a ed.)Katzan, Harry. Systems Design and Documentation: An Introduction to the HIPO Method. New York: Van Nostrand Reinhold, 1976.
Cita MLA (9a ed.)Katzan, Harry. Systems Design and Documentation: An Introduction to the HIPO Method. Van Nostrand Reinhold, 1976.
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