Stewart, D. F.
Options for cement production in Papua New Guinea : a study in choice of technology / D. F. Stewart. - [Lae] : Dept. of Chemical Technology, Papua New Guinea University of Technology, 1981. - 26 leaves.
Cement industries--Papua New Guinea.
Options for cement production in Papua New Guinea : a study in choice of technology / D. F. Stewart. - [Lae] : Dept. of Chemical Technology, Papua New Guinea University of Technology, 1981. - 26 leaves.
Cement industries--Papua New Guinea.