Lewis, William Arthur, 1915-
The principles of economic planning: a study prepared for the Fabian Society
Unwin University Books, 1970
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Sachs, Ignacy
Development and planning
Cambridge University Press , 1987
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Essays on planning and economic development : research papers
PWN-Polish Scientiic Publishers, 1968
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Tinbergen, Jan, 1903-
Development planning
McGraw-Hill, 1967
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Fryer, D.W.
World economic development
McGraw-Hill, 1965
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