National Academy of Sciences. (1976). Systems analysis and operations research: A tool for policy and program planning for developing countries. National Academy of Sciences.
Citace podle Chicago (17th ed.)National Academy of Sciences. Systems Analysis and Operations Research: A Tool for Policy and Program Planning for Developing Countries. Washington, D.C: National Academy of Sciences, 1976.
Citace podle MLA (9th ed.)National Academy of Sciences. Systems Analysis and Operations Research: A Tool for Policy and Program Planning for Developing Countries. National Academy of Sciences, 1976.
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