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Rubber in Brazil

Antonio Joaquim Souza Carneiro

出版	Ministerio da Agricultura, Industria e Commercio, 1913
URL	http://books.google.com.hk/books?id=-z9MAQAAIAAJ&hl=&source=gbs_api

註釋

Rubber and gutta-percha producing plants. Yield of tapped trees. Raw rubber.