Intierra Mapping & Northern Miner. (2006). Sierra Madre area, Mexico: Mining and exploration activity. Intierra Mapping.
Chicago Style (17th ed.) CitationIntierra Mapping and Northern Miner. Sierra Madre Area, Mexico: Mining and Exploration Activity. [Toronto, Ont.?]: Intierra Mapping, 2006.
MLA (9th ed.) CitationIntierra Mapping and Northern Miner. Sierra Madre Area, Mexico: Mining and Exploration Activity. Intierra Mapping, 2006.
Warning: These citations may not always be 100% accurate.