Yazar
david a westworth
3 cilt bulundu.
Cilt sonuçları
Field exposure and biological effects of grain farmers during carbofuran application for grasshopper control
D. Johnston, Louise P. Horstman, K. Yoshida, T. E. Code, Lawrence M. Brusnyk, David A. Westworth · Alberta Agriculture, Crop Protection Branch
Sayfa sayısı yok · 1987
Carbofuran / Toxicology / Insecticides / Pesticides
Effects of seismic activity on the behavior and activity of muskrats on the Mackenzie Delta
David A. Westworth · Northern Affairs Program, Indian and Northern Affairs Canada
68 sayfa · 1980
Behavior / Environmental aspects / Environmental aspects of Seismic prospecting / Muskrat / Seismic prospecting
Impact of seismic activity on muskrat populations on the Mackenzie Delta
David A. Westworth, Canada. Indian and Northern Affairs, Arctic Land Use Research Program (Canada), Northern Affairs Program (Canada). Environment Division, EPEC Consulting Western Ltd · Indian and Northern Affairs
70 sayfa · 1977
Seismic prospecting / Environmental aspects / Muskrat