Philippines (Commonwealth) & Philippines (Commonwealth). (1937). Securities & mining handbook: Commentaries on how the Bureau of Mines and the Securities and Exchange Commission may stabilize our mining industry. [s.n.].
Chicago-referens (17:e uppl.)Philippines (Commonwealth) och Philippines (Commonwealth). Securities & Mining Handbook: Commentaries on How the Bureau of Mines and the Securities and Exchange Commission May Stabilize Our Mining Industry. Manila: [s.n.], 1937.
MLA-referens (9:e uppl.)Philippines (Commonwealth) och Philippines (Commonwealth). Securities & Mining Handbook: Commentaries on How the Bureau of Mines and the Securities and Exchange Commission May Stabilize Our Mining Industry. [s.n.], 1937.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.