APA (7th ed.) Citation

Carrad, B., Heywood, P. F., & Bourke, R. M. (1981). Papua New Guinea's food problems. Dept. of Primary Industry, P.N.G..

Chicago Style (17th ed.) Citation

Carrad, Bruce, Peter F. Heywood, and R. Michael Bourke. Papua New Guinea's Food Problems. [Port Moresby]: Dept. of Primary Industry, P.N.G., 1981.

MLA (9th ed.) Citation

Carrad, Bruce, et al. Papua New Guinea's Food Problems. Dept. of Primary Industry, P.N.G., 1981.