Não informado. (1963). Rhodesian journal of agricultural research. Agricultural Research Council of Central Africa.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Rhodesian Journal of Agricultural Research. Salisbury, Zimbabwe: Agricultural Research Council of Central Africa, 1963.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Rhodesian Journal of Agricultural Research. Agricultural Research Council of Central Africa, 1963.
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