Cita APA (7a ed.)

Papua New Guinea. Department of Primary Industry. (1977). Arabica coffee. Dept. of Primary Industry.

Cita Chicago Style (17a ed.)

Papua New Guinea. Department of Primary Industry. Arabica Coffee. Port Moresby: Dept. of Primary Industry, 1977.

Cita MLA (9a ed.)

Papua New Guinea. Department of Primary Industry. Arabica Coffee. Dept. of Primary Industry, 1977.