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