986 resultados para Forests and forestry--Ontario.


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[Paper birch and aspen with understanding of Abies balsaoned, Acer saccharum, Betula hutea, etc.]

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Vols. for 196 - contain also in the title the year covered, e.g. Publications for 1973.

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On Federal Environmental Pesticide Control Act of 1972 to amend the Federal Insecticide, Fungicide, and Rodenticide Act.

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Includes bibliographical references (p. 14).

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"This publication may be designated as FP-4l."