Minerals Yearbook 1990. Volume III: Mineral industries of Latin America and Canada area reports: international
U.S. Bureau of mines.
- Washington Government printing office 1992
0160381827
U.S. Bureau of mines.
minerales
metales
anuario
América Latina
Canadá
549
0160381827
U.S. Bureau of mines.
minerales
metales
anuario
América Latina
Canadá
549