International navigable waterways : financial and legal aspects of the improvement and maintenance : report on the symposium held at Buenos Aires from 30 November to 4 December 1970 : based on the discussions at the symposium and the working papers
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書誌事項
International navigable waterways : financial and legal aspects of the improvement and maintenance : report on the symposium held at Buenos Aires from 30 November to 4 December 1970 : based on the discussions at the symposium and the working papers
（UNITAR study, no. 6）
UNITAR, 1975
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注記
"UNITAR/74/ST/6."
Bibliography: p. 139-140