Great Spruce bark beetle
Brown, J.M.B.
Great Spruce bark beetle - London HMSO 1966 - 41p. - (Forestry Commission Bulletin No.38) .
595.76 B7 G7
Great Spruce bark beetle - London HMSO 1966 - 41p. - (Forestry Commission Bulletin No.38) .
595.76 B7 G7