National Research Council (EUA). (1974). ROOFING IN DEVELOPING COUNTRIES: RESEARCH FOR NEW TECHNOLOGIES.
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Chicago-čujuhus (17. p.)
National Research Council (EUA). ROOFING IN DEVELOPING COUNTRIES: RESEARCH FOR NEW TECHNOLOGIES. 1974.
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MLA-čujuhus (9. p.)
National Research Council (EUA). ROOFING IN DEVELOPING COUNTRIES: RESEARCH FOR NEW TECHNOLOGIES. 1974.
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