O plano oficial de contabilidade explicado / José Bento
Delphi assessment Pennsylvania power & light company coal-fired power plant site selection [[texto fotocopiado]] / The University of Iowa Libraries
Energy supply-demand integrations to the year 2000 : Global and national studies / Paul S. Basile (edit.), Carrol L. Wilson (dir.)
Energy supply to the year 2000 : global and national studies / William F. Martin (edit.), Carrol L. Wilson (dir.)
Solar heating and cooling : engineering, pratical design, and economics / Jan F. Kreider, Frank Kreith
L' Europe sidérurgique au défi : I-la bataille de l'acier / Henri Rieben
Alternative concepts of marginal cost for public utility pricing : problems of application in the Water Supply Sector / Robert J. Saunders , Jeremy J. Warford; Patrick C. Mann (consultor)
L' Enjeu nucléaire / Jean Rossel
World energy outlook : a reassessment of long term energy developments and related policies
Produções, exportações e importações de substâncias minerais de Portugal Continental e Ilhas Adjacentes em 1973 / Fernando A.C. Macieiria
Relatório, Balanço e Contas : Exercício de 1976 / Mague
Relatório, Balanço e Contas : Exercício de 1975 / Mague