文
论文分享
演练场
杂货铺
论文推荐
字
编辑器下载
登录
注册
P. Harris
发表
Cost of Biological Control of Weeds by Insects in Canada
P. Harris, P. Harris, 1979, Weed Science.
An economic evaluation of control methods for diffuse and spotted knapweed in western Canada.
P. Harris, R. Cranston, P. Harris, 1979 .