Manganese.
Contributors: Philippines. Lands Geological Survey Division.
Series: Mineral resource information series -- no. 4
Publisher: Lands Geological Survey Division, Mines and Geosciences Bureau, Dept. of Environment and Natural Resources
Published: 2005
Place of publication: Quezon City
Language: eng
Number of pages: 18
Notes: Cover title.

"January 2005."

Includes bibliographical references.