Regulacions under the destructive insect and pest act : with instructions to importers and exporters of trees, plants and other nursery stock /
Hewitt, C. Gordon
Regulacions under the destructive insect and pest act : with instructions to importers and exporters of trees, plants and other nursery stock / by C. Gordon Hewitt - Ottawa : Department of Agriculture - 12 p. - Circular; 10 .
205552
Arboles -- plagas
Viveros forestales
Regulacions under the destructive insect and pest act : with instructions to importers and exporters of trees, plants and other nursery stock / by C. Gordon Hewitt - Ottawa : Department of Agriculture - 12 p. - Circular; 10 .
205552
Arboles -- plagas
Viveros forestales