13.
11 World Energy Conference: technical papers : energy supply
14.
O gás natural no contexto energético português alteração ao programa do simpósio a partir das 12 horas do dia 20 / Conferência Mundial de Energia
15.
The world energy book : an A-Z, atlas and statistical source book / David Crabbe, Richard McBride
Autor:
CRABBE, David
16.
Oil resources : who get what how? / Kenneth W. Dam
Autor:
Dam, Kenneth W.
17.
Problèmes posés par l'interchangeabilité des gaz de la deuxième famille
18.
National conference on natural gas for industrial boiler firing / Committee on Behalf of the Instute of Fuel (org.)
19.
Industrial fuels / Peter C. Bell (edit.)
20.
The Eighth World Energy Conference
21.
The Eighth World Energy Conference
22.
The Eighth World Energy Conference
23.
The Eighth World Energy Conference
24.
Central ciclo combinado : parte I : Programa da consulta / EDP
Data:
1971
