A study of decay in Douglas fir in the Pacific northwest Decay in Douglas fir Boyce, John Shaw. creator text dcu Washington Govt. print. off. 1923 monographic eng
print
20 p. viii pl. on 4 l. 23 cm. By J.S. Boyce. Contribution from Bureau of plant industry. "Literature cited": p. 19. Douglas fir Diseases and pests SB608.F4 B6 U.S. Dept. of agriculture. Department bulletin no. 1163 agr23001222 DLC 070925 20260227110943.0 agr23001222