E., H. (1967). Trends in the World Demand for Primary Products & Their Impli-cations for the Exports of De-veloping Countries. The Institute of National Planning.
Citace podle Chicago (17th ed.)E., Hammam. Trends in the World Demand for Primary Products & Their Impli-cations for the Exports of De-veloping Countries. Cairo: The Institute of National Planning, 1967.
Citace podle MLA (9th ed.)E., Hammam. Trends in the World Demand for Primary Products & Their Impli-cations for the Exports of De-veloping Countries. The Institute of National Planning, 1967.
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