An edition of Environment : adoption of adjustments and amendment to the Montreal Protocol on substances that deplete the ozone layer concluded at Montreal on 16 September 1987, Montreal, September 17, 1997, ratification by Canada March 27, 1998, in force November 10, 1999, in force for Canada November 10, 1999 = (1998)

Environment : adoption of adjustments and amendment to the Montreal Protocol on substances that deplete the ozone layer concluded at Montreal on 16 September 1987, Montreal, September 17, 1997, ratification by Canada March 27, 1998, in force November 10, 1999, in force for Canada November 10, 1999 =

Environnement : adoption d'ajustements et d'un amendement au Protocole de Montréal relatif à des substances qui appauvrissent la couche d'ozone conclu à Montréal le 16 septembre 1987, Montréal, le 17 septembre 1997, ratification du Canada le 27 mars 1998, en vigueur le 10 novembre 1999, en vigueur pour le Canada le 10 novembre 1999.

By Canada. Dept. of Foreign Affairs and International Trade.