@article{229354, author = {Barker, Fred,}, url = {http://library.usi.edu/record/229354}, title = {Gold investigations in precambrian clastic and pelitic rocks, southwestern Colorado and northern New Mexico /}, publisher = {U.S. Govt. Print. Off.,}, recid = {229354}, pages = {iii, 22 p. :}, address = {Washington :}, year = {1969}, }