Gaya APA

International Conference on Tanker Safety and Pollution Prevention, 1978. (1980). : Departemen Perhubungan Direktorat Jenderal Perhubungan Laut.

Gaya MLA

International Conference on Tanker Safety and Pollution Prevention, 1978. . : Departemen Perhubungan Direktorat Jenderal Perhubungan Laut, 1980. Text.