Tom atom and his magic domes / Chris Schirmer
Révision des Méthodes Polarographiques de Dosage des Cations (Mem.nº 8) / M. T. Águas Silva
Fifth World Power Conference
Fifth Power Conference
Energia nuclear / Ricardo de Melo Cabrita
Fifth World Power Conference. Vol.18/19
Industrielle energiebedarfs-untersuchungen / Verlag G. Braun
Fifth World Power Conference. Vol.4
O.E.C.E. - O problema da energia na Europa / Instituto Nacional da Indústria