Não informado. (1950). Colonial Plant and Animal Products. Colonial Products Laboratory.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Colonial Plant and Animal Products. London: Colonial Products Laboratory, 1950.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Colonial Plant and Animal Products. Colonial Products Laboratory, 1950.
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