Philippines (Republic). Department of Trade and Industry. (1991). The master plan study on the project CALABAR: Interim report. Japan International Cooperation Agency.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPhilippines (Republic). Department of Trade and Industry. The Master Plan Study on the Project CALABAR: Interim Report. [Tokyo]: Japan International Cooperation Agency, 1991.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিPhilippines (Republic). Department of Trade and Industry. The Master Plan Study on the Project CALABAR: Interim Report. Japan International Cooperation Agency, 1991.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.