Knetsch, J., & Trebilcock, M. J. (1981). Land policy and economic development in Papua New Guinea. Institute of National Affairs.
Tohutoru Kātū ChicagoKnetsch, Jack, me M. J. Trebilcock. Land Policy and Economic Development in Papua New Guinea. Port Moresby: Institute of National Affairs, 1981.
Tohutoro MLAKnetsch, Jack, me M. J. Trebilcock. Land Policy and Economic Development in Papua New Guinea. Institute of National Affairs, 1981.
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