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j picot
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Forestry pesticide aerial spraying
J. J. C. Picot · Kluwer Academic Publishers
213 sayfa · 1997
Control / Aerial spraying and dusting in forestry / Forest insects
A brief history of teacher training in New Brunswick, 1848-1973
J. Ernest Picot · Dept. of Education, Province of New Brunswick
146 sayfa · 1974
History / Teachers / Training of
Forestry Pesticide Aerial Spraying
J. J. Picot, D. D. Kristmanson · Springer London, Limited
215 sayfa · 2012
Insects, canada / Insect pests, control / Spraying and dusting in agriculture