APA (7th ed.) Citation

Ganarafo, R. G., & Papua New Guinea Coffee Marketing Board. (1990). Coffee growing in Papua New Guinea. Coffee Board.

Chicago Style (17th ed.) Citation

Ganarafo, Ron G., and Papua New Guinea Coffee Marketing Board. Coffee Growing in Papua New Guinea. [Goroka?]: Coffee Board, 1990.

MLA (9th ed.) Citation

Ganarafo, Ron G., and Papua New Guinea Coffee Marketing Board. Coffee Growing in Papua New Guinea. Coffee Board, 1990.