Les Actions Aleatoires (Mem.nº 476) / J.Ferry Borges
Produções, exportações e importações de substâncias minerais de Portugal Continental e Ilhas Adjacentes em 1974 / Fernando A.C. Macieiria
Metals handbook / Handbook Committee
The Ninth World Energy Conference: the economic and environmental challenges of future energy requirements
Ninth World Energy Conference : the economic and environmental challenges of future energy requirement. population and energy resources / Ninth World Energy Conference
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: environment and the energy supply / Ninth World Energy Conference
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: energy resource recovery / Ninth World Energy Conference
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: energy conversion / Ninth World Energy Conference
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: transportation of energy / Ninth World Energy Conference
Ninth World Energy Conference: the economic and environmental challenges of future energy requirements: utilization of energy / Ninth World Energy Conference
Produções, exportação e importações de substâncias minerais de Portugal Continental e Ilhas Adjacentes em 1973 / Fernando A.C. Macieiria
Present Possibilities of Studying Foundations of Concrete Dams (Mem.nº 457) / Manuel Rocha