Não informado. (1963). Rhodesian journal of agricultural research. Agricultural Research Council of Central Africa.
Chicago-referens (17:e uppl.)Não informado. Rhodesian Journal of Agricultural Research. Salisbury, Zimbabwe: Agricultural Research Council of Central Africa, 1963.
MLA-referens (8:e uppl.)Não informado. Rhodesian Journal of Agricultural Research. Agricultural Research Council of Central Africa, 1963.
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