Spence, R. Grass-Roots Tech: Community-Based Building Programme, Papua New Guinea. The Architectural Review, 1987(1085), .
Cita Chicago Style (17a ed.)Spence, Rory. "Grass-Roots Tech: Community-Based Building Programme, Papua New Guinea." The Architectural Review 1987(1085) ().
Cita MLA (9a ed.)Spence, Rory. "Grass-Roots Tech: Community-Based Building Programme, Papua New Guinea." The Architectural Review, vol. 1987(1085), .
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