88 resultados para Plants, Protection of


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Includes index.

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Published in part as the author's thesis (Ph.D.) Columbia University, 1914.

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Many numbers lack general title.

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Amendments [issued by Plant Quarantine Division or Plant Pest Control Division.] (1 v. loose-leaf)

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The Maine bulletin. vol.XXXVII, no.8. February, 1936.

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Mode of access: Internet.

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Original title: Lehre vom Waldschutz.