What has the author Richard A Werner written?

Answer 1

Richard A. Werner has written:

'The spruce beetle in white spruce forests of Alaska' -- subject(s): Spruce, Diseases and pests

'Dispersal of the spruce beetle, Dendroctonus rufipennis, and the engraver beetle, Ips perturbatus, in Alaska' -- subject(s): Dispersal, Spruce beetle, Bark beetles, Trees, Diseases and pests

'The spruce beetle in Alaska forests' -- subject(s): Spruce bark beetles