Mbaga-Semgalawe, Z. (1998). Household adoption behaviour and agricultural sustainability in the northeastern mountains of Tanzania: The case of soil conservation in the north Pare and west Usambara mountains. s.n..
Chicago-referens (17:e uppl.)Mbaga-Semgalawe, Zainab. Household Adoption Behaviour and Agricultural Sustainability in the Northeastern Mountains of Tanzania: The Case of Soil Conservation in the North Pare and West Usambara Mountains. [Wageningen: s.n., 1998.
MLA-referens (8:e uppl.)Mbaga-Semgalawe, Zainab. Household Adoption Behaviour and Agricultural Sustainability in the Northeastern Mountains of Tanzania: The Case of Soil Conservation in the North Pare and West Usambara Mountains. s.n., 1998.
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