Ward, P. T. (1984). Systems development without pain: A user's guide to modeling organizational patterns. Yourdon Press.
Citace podle Chicago (17th ed.)Ward, Paul T. Systems Development Without Pain: A User's Guide to Modeling Organizational Patterns. New York: Yourdon Press, 1984.
Citace podle MLA (9th ed.)Ward, Paul T. Systems Development Without Pain: A User's Guide to Modeling Organizational Patterns. Yourdon Press, 1984.
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