Conference mondiale de l'energie 14e Congres Montreal 89 = World Energy conference 14th Congress Montreal 89 : l'energie demain = energy for tomorrow : L'ENERGIE ET L'ENVIRONNEMENT = ENERGY AND ENVIRONMENT : EVALUATION DE L'ENVIRONNEMENT: AIR, EAU, SOL = ENVIRONMENTAL ASSESSMENTS: AIR, WATER, LAND. 2.2 (Nepoznat, 1989)