[Anales - Congreso Nacional de la Industria Minera.]
[Anales - Congreso Nacional de la Industria Minera.]
- Lima, [s.n.]
- v. 25 cm.
- [1.]- congreso; Dec. 30, 1917/Jan. 11, 1918-
59040710
Mineral industries--Congresses.--Peru
TN4.C6 / A2
59040710
Mineral industries--Congresses.--Peru
TN4.C6 / A2