Portugal
Portugal promoting mineral resources development
Portugal promoting mineral resources development; : some aspects of DGGM activity
/ Direcçao Geral de Geologia e Minas.
- Lisboa : DGGM, 1992.
- 50, [1] p. : il. ; 30 cm.
- (Brochado) . -
CDU 622.01CDU 553
FG/C-7822 (Biblioteca Pública e Arquivo Regional Luís da Silva Ribeiro)