Cutworms and army-worms
Gibson, Arthur
Cutworms and army-worms - Ottawa 1912 - 1-29 p. - Cutworms Canada Department of Agricultural Central Experimental Farm. Bulletin No. 70 .
Cutworms and army-worms - Ottawa 1912 - 1-29 p. - Cutworms Canada Department of Agricultural Central Experimental Farm. Bulletin No. 70 .