Small-scale gold mining a geographic perspective of the use and development of a mineral resource

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Bayle, Romeo L.
Formáid:	Tráchtas
Teanga:	English
Foilsithe / Cruthaithe:	1999.
Ábhair:	Gold mine and mining > Philippines > Gumaus (Paracale, Camarines Norte). Gumaus (Paracale, Camarines Norte) > Economic conditions.