Philippines (Republic). Department of Trade and Industry. (1991). The master plan study on the project CALABAR: Interim report. Japan International Cooperation Agency.
Chicago-viite (17. p.)Philippines (Republic). Department of Trade and Industry. The Master Plan Study on the Project CALABAR: Interim Report. [Tokyo]: Japan International Cooperation Agency, 1991.
MLA-viite (9. p.)Philippines (Republic). Department of Trade and Industry. The Master Plan Study on the Project CALABAR: Interim Report. Japan International Cooperation Agency, 1991.
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