Johns, R. J.
Introduction to ecology : lecture notes for biology field course - Aiyura / R. J. Johns and R. Payet. - [Lae] : Papua New Guinea University of Technology, [1987]. - 276 p. : ill.
Ecology--Papua New Guinea.
Botany--Papua New Guinea.
Introduction to ecology : lecture notes for biology field course - Aiyura / R. J. Johns and R. Payet. - [Lae] : Papua New Guinea University of Technology, [1987]. - 276 p. : ill.
Ecology--Papua New Guinea.
Botany--Papua New Guinea.