69 resultados para Quarantine.


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Contribution from Bureau of Entomology and Plant Quarantine.

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Copy 2: Amer. Ent. Soc. QL523.A6M3.

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Contribution from Bureau of Entomology and Plant Quarantine.

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Contribution from Bureau of entomology and plant quarantine.

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Includes indexes.

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"Interim report no. 0-100 (NRC Insect control committee Report no. 100). A report to the Committee on medical research on work done under a transfer of funds, recommended by this committee, from the Office of scientific research and development to the Bureau of entomology and plant quarantine."--Foot-note, p. 1.

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Mode of access: Internet.

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Mode of access: Internet.