12 resultados para control of diseases

em University of Michigan


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Reprint no. 1697 from the Public Health reports (revised 1945).

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Blank pages for memoranda in back.

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Bibliography: p. 37-38.

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This essay won the second prize in the Poultry Disease Essay Contest of 1949.

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Vol. for 1951 called 2nd. ed.; for 1956, 3rd. ed., etc.

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