National Planning Association. (1965). The economies of fifteen metropolitan areas: A historical and projected employment output, population and personal income 1950, 1957, 1960, 1962 and 1975. [National Planning Association].
Citace podle Chicago (17th ed.)National Planning Association. The Economies of Fifteen Metropolitan Areas: A Historical and Projected Employment Output, Population and Personal Income 1950, 1957, 1960, 1962 and 1975. Washington, D.C: [National Planning Association], 1965.
Citace podle MLA (9th ed.)National Planning Association. The Economies of Fifteen Metropolitan Areas: A Historical and Projected Employment Output, Population and Personal Income 1950, 1957, 1960, 1962 and 1975. [National Planning Association], 1965.
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