Mining newsletter.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	Philippine Society of Mining, Metallurgical and Geological Engineers
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Manila Philippine Society of Mining, Metallurgical & Geological Engineers 1951-
Pynciau:	Mineral industries > Philippines > Periodicals. Mineral industries.