Indonesia. Direktorat Jenderal Perhubungan Laut. (1971). Documentation related to the improvement of maritime services. Directorate General of Sea Communications.
Citace podle Chicago (17th ed.)Indonesia. Direktorat Jenderal Perhubungan Laut. Documentation Related to the Improvement of Maritime Services. [Djakarta: Directorate General of Sea Communications, 1971.
Citace podle MLA (8th ed.)Indonesia. Direktorat Jenderal Perhubungan Laut. Documentation Related to the Improvement of Maritime Services. Directorate General of Sea Communications, 1971.
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