Sien, C. L., Onyirimba, L., & Akpan, G. (1999). Liberalization of maritime transport services: Directions and options for ASIA. Ocean Law and Policy Series.
Citace podle Chicago (17th ed.)Sien, Chia Lin, Lloyd Onyirimba, a George Akpan. "Liberalization of Maritime Transport Services: Directions and Options for ASIA." Ocean Law and Policy Series 1999.
Citace podle MLA (9th ed.)Sien, Chia Lin, et al. "Liberalization of Maritime Transport Services: Directions and Options for ASIA." Ocean Law and Policy Series, 1999.
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