Cita APA (7a ed.)

Viveen, W. J. A. R. (1980). Practical manual for the culture of the african catfish Clarias Gariepinus. Directorate General International Cooperation of the Foreign Affairs.

Cita Chicago Style (17a ed.)

Viveen, W. J. A. R. Practical Manual for the Culture of the African Catfish Clarias Gariepinus. La Haya: Directorate General International Cooperation of the Foreign Affairs, 1980.

Cita MLA (9a ed.)

Viveen, W. J. A. R. Practical Manual for the Culture of the African Catfish Clarias Gariepinus. Directorate General International Cooperation of the Foreign Affairs, 1980.