Study of decay in douglas fir in the pacific Northwest
Boyce, J.S.
Study of decay in douglas fir in the pacific Northwest - Washington 1923 - 1-18 p. - Pacific United States Department of Agriculture. Department Bulletin No. 1163 .
Study of decay in douglas fir in the pacific Northwest - Washington 1923 - 1-18 p. - Pacific United States Department of Agriculture. Department Bulletin No. 1163 .