Braun, H.E. and Frank, R. Organochlorine and organophosphorus insecticides: their use in eleven agricultural watersheds and their loss to stream waters in Southern Ontario, Canada, 1975–1977.
Braun, H.E. et Frank, R. Organochlorine and organophosphorus insecticides: their use in eleven agricultural watersheds and their loss to stream waters in Southern Ontario, Canada, 1975–1977.