Central Book Supply, Inc, & Philippines (Republic). (1970). Mining laws of the Philippines (4th ed.). [s.n.].
Chicago-referens (17:e uppl.)Central Book Supply, Inc, och Philippines (Republic). Mining Laws of the Philippines. 4th ed. Manila: [s.n.], 1970.
MLA-referens (9:e uppl.)Central Book Supply, Inc, och Philippines (Republic). Mining Laws of the Philippines. 4th ed. [s.n.], 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.