Martin, H. A.
Solar heaters : which ones are most suitable for Papua New Guinea / [H. A. Martin]. - [Lae] : Papua New Guinea Institute of Technology, Dept. of Mechanical Engineering, [1973?]. - 7 leaves : ill.
Solar water heaters.
Solar heaters : which ones are most suitable for Papua New Guinea / [H. A. Martin]. - [Lae] : Papua New Guinea Institute of Technology, Dept. of Mechanical Engineering, [1973?]. - 7 leaves : ill.
Solar water heaters.