Barker, F. (1969). Gold investigations in Precambrian clastic and pelitic rocks, southwestern Colorado and northern New Mexico. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationBarker, Fred. Gold Investigations in Precambrian Clastic and Pelitic Rocks, Southwestern Colorado and Northern New Mexico. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1969.
MLA (9th ed.) CitationBarker, Fred. Gold Investigations in Precambrian Clastic and Pelitic Rocks, Southwestern Colorado and Northern New Mexico. United States Department of the Interior, Geological Survey, 1969.
Warning: These citations may not always be 100% accurate.