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Technologies to maintain biological diversity
The world's commercial products : a descriptive account of the economic plants of the world and of their commercial uses
The practical study of malaria and other blood parasites
The world's commercial products; a descriptive account of the economic plants of the world and of their commercial uses
Processing physical and chemical data from oceanographic stations
The ox and its kindred
Tobacco in the United States : production, marketing, manufacturing, exports
Revision of Melanocryptus Cameron (Ichneumonidae, Cryptinae), with description of seven new species
The cultivation and preparation of Para rubber