Obsidian sourcing at Huluga Open Site an evidence of exchange?

Bibliographic Details
Main Author:	Neri, Leee Anthony M.
Format:	Thesis
Language:	English
Published:	2003.
Subjects:	Obsidian > Philippines > Huluga Open Site (Cagayan de Oro City). Commerce, Prehistoric > Philippines > Huluga Open Site (Cagayan de Oro City). Archaeology > Methodology.