Lepanto Consolidated Mining Company. Report. 1st- 19-. [s.n.
Cita Chicago (17th ed.)Lepanto Consolidated Mining Company. Report. 1st- 19-. Manila: [s.n.
Cita MLA (9th ed.)Lepanto Consolidated Mining Company. Report. 1st- 19-. [s.n.
Atenció: Aquestes cites poden no estar 100% correctes.