UNITED NATION. (1979). APPROPRIATE INDUTRIAL TECHNOLOGY FOR ENERGY FOR RURAL REQUIREMENTS. UNITED NATION.
Chicago-čujuhus (17. p.)UNITED NATION. APPROPRIATE INDUTRIAL TECHNOLOGY FOR ENERGY FOR RURAL REQUIREMENTS. NEW YORK: UNITED NATION, 1979.
MLA-čujuhus (9. p.)UNITED NATION. APPROPRIATE INDUTRIAL TECHNOLOGY FOR ENERGY FOR RURAL REQUIREMENTS. UNITED NATION, 1979.
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