Não informado. (1968). Rhodesian journal of agricultural research. Department of Research and Specialist Services.
Citace podle Chicago (17th ed.)Não informado. Rhodesian Journal of Agricultural Research. Salisbury, Zimbabwe: Department of Research and Specialist Services, 1968.
Citace podle MLA (8th ed.)Não informado. Rhodesian Journal of Agricultural Research. Department of Research and Specialist Services, 1968.
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