Vascular-streak dieback of cocoa in Papua New Guinea /
by P. J. Keane, N. J. Flentje, and K. P. Lamb.
- [Port Moresby] : University of Papua and New Guinea, Dept. of Biology, 1971.
- 13p. : ill.
- Occasional papers ; no. 1. .
- Occasional paper (University of Papua and New Guinea. Dept. of Biology) ; no. 1. .