Colquiri

AHLFELD, F., 1954, LOS YACIMIENTOS MINERALES DE BOLIVIA: BANMINERO DE BOLIVIA, LA PAZ, BOLIVIA, P. 42-44.ENGINEERING AND MINING JR., 1975, INTERN. DIRECTORY OF MININMCGRAW HILL, N. Y., P. 212.CAMPBELL,D.F.,GEOLOGY OF THE COLQURI MINE,ECON.GEOL.,42;19471-21.LOS YACIMENTOS MINERALES Y HIDROCARBUROS DE BOLIVIA,GEOBOL BAHLFIELD,F.,1964,PP149-150MINERALS YEARBOOK-1972,VOL.III,INTERNATIONAL-BOLIVIA-TINMATERIALS SURVEY OF TIN-1953,J.C.RIDGE,PSU;DEPT OF COMMERCE,CHAP.6,PP20METALS SOURCEBOOK 8/12/74 ITEM (B3836)MINING JOURNAL, P. 257 (APRIL 9, 1993).ENGINEERING AND MINING JOURNAL, MARCH 1992, P.51