APA (7th ed.) Citation

(1918). Platinum in Colombia; Argentine petroleum yield; Exchange in Argentina; Japanese interest in South America. [publisher not identified].

Chicago Style (17th ed.) Citation

Platinum in Colombia; Argentine Petroleum Yield; Exchange in Argentina; Japanese Interest in South America. Washington, D.C.: [publisher not identified], 1918.

MLA (9th ed.) Citation

Platinum in Colombia; Argentine Petroleum Yield; Exchange in Argentina; Japanese Interest in South America. [publisher not identified], 1918.