An edition of Proceedings of a symposium on Fenitrothion: the Long-Term Effects of its use in Forest Ecosystems, Ottawa, Canada; 20-22 April 1977 = (1977)

Proceedings of a symposium on Fenitrothion: the Long-Term Effects of its use in Forest Ecosystems, Ottawa, Canada; 20-22 April 1977 =

Comptes rendus du symposium sur le fenitrothion: les effets a long terme de son utilisation dans les ecosytemes forestiers, Ottawa, Canada; 20-22 avril 1977

By National Research Council Canada. Subcommittee on Pesticides and Related Compounds.