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1. Dispersal and toxicology of the insecticide fenitrothion ; predicting hazards of forest spraying / by P. E. K. Symons.

by Symons, P. E. K. -- Canada. Environment Canada. Fisheries and Marine Services

Material type: book Book; Literary form: not fiction ; Audience: Specialized; Publisher: St. Andrews, N. B. : Environment Canada, 1975Availability: Items available for loan: [CA2 NB ENV D37 1975] (1).
2. Some effects of potato farming and forest clearcutting on New Brunswick streams / by H.E. Welch, P.E.K. Symons, and D.W. Narver.

by Welch, H. E; Symons, P. E. K; Narver, D. W.

Material type: book Book; Format: print ; Literary form: not fiction Publisher: St. Andrews, N.B. : Biological Station, 1977Availability: Items available for loan: [628.16 W439] (1).

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