7 resultados para arable cropping
em University of Michigan
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"Reprinted from Science, N.S., vol. xxxviii, no. 973, Aug. 22, 1913."
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Title-page in red and black.
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Chiefly tables.
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Includes bibliographical references (p. 60-64).
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Plates after drawings by Bright engraved by Elizabeth Byrne, John Byrne, Lititia Byrne, H. Hobson, Samuel Middiman, Milton, John Pye, William Raymond Smith. Maps engraved by Sidney Hall. Wood-engraved head-pieces.
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Thesis (Ph. D.)--Cornell University, May, 1988.
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Shipping list no.: 89-80-P.