12 resultados para industry concentration

em Biodiversity Heritage Library, United States

The commercial products of the sea; or, Marine contributions to food, industry, and art. By P. L. Simmonds ... with thirty-two illustrations.

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Annual record of science and industry.

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1872

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Annual record of science and industry.

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1878

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Annual record of science and industry.

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1877

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Annual record of science and industry.

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1874

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Annual record of science and industry.

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1871

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Annual record of science and industry.

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1876

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Annual record of science and industry.

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1875

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Annual record of science and industry.

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1873

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American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

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v.1 1889

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Fisheries of Key West and the clam industry of southern Florida. By William C. Schroeder.

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Inventory of seeds and plants imported / U.S. Department of Agriculture, Bureau of Plant Industry.

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62-73, 1923-1924

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