61.
Modèles de gestion des systèmes hydroélectriques de production de l'énergie électrique dans les pays de l'UCPTE et de la NORDEL
62.
The Eighth World Energy Conference
63.
The Eighth World Energy Conference
64.
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: environment and the energy supply / Ninth World Energy Conference
65.
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: energy resource recovery / Ninth World Energy Conference
66.
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: energy conversion / Ninth World Energy Conference
67.
World energy outlook : a reassessment of long term energy developments and related policies
68.
The perspectives of energy development / P.J. Nowacki
Autor:
Nowacki, P.J.
69.
Politiques et programmes energetiques des pays membres de l'AIE
70.
Projecto do aproveitamento do Funil
71.
Álcool : uma agenda para o presente / Jaime Rotstein
Autor:
Rotstein, Jaime
72.
O sector energético metropolitano : combustíveis / Direcção Geral dos Combustíveis
