Paul, E. C. (1974). The viability of Singapore: An aspect of modern political geography. University Microfilms International.
Citace podle Chicago (17th ed.)Paul, Erik Charles. The Viability of Singapore: An Aspect of Modern Political Geography. Ann Arbor: University Microfilms International, 1974.
Citace podle MLA (9th ed.)Paul, Erik Charles. The Viability of Singapore: An Aspect of Modern Political Geography. University Microfilms International, 1974.
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