| References: |
- Deposit:: STAFF, MINING INTERNATIONAL YEARBOOK 1978: FINANCIAL TIMES,
- Deposit:: LONDON, 1978, 310 P.
- Deposit:: STAFF, 1978 ENGINEERING AND MINING JOURNAL INTERNATIONAL
- Deposit:: DIRECTORY OF MINING AND MINERAL PROCESSING OPERATIONS: NEW
- Deposit:: YORK, MCGRAW-HILL, 1978, 314 P.
- Deposit:: MINING ANNUAL REVIEW, MEXICO: LONDON, MINING JOURNAL, 1977,
- Deposit:: 343 P.
- Deposit:: FLUORSPAR-THE WORL* LEADING PRODUCER, INDUSTRIAL MINERALS,
- Deposit:: JUNE, 1980.
- Deposit:: INDUSTRIAS PENOLES,S.A. DE C.V.,ANNUAL REPORT, 1981.
- Deposit:: FLUORSPAR-FALLING PRICES AS CAPACITY LEADS DEMAND,
- Deposit:: INDUSTRIAL MINERALS, JUNE 1982.
- Geology:: GEOLOGY AND GEOCHEMISTRY OF THE LAS CUEVAS FLUORITE DEPOSIT
- Geology:: SAN LUIS POTOSI, MEXICO, ECONOMIC GEOLOGY, VOL.75,1980.
- Reserve-Resource:: MINE/DEPOSIT DATA SHEETS
- Reserve-Resource:: PERSONAL CORRESPONDENCE FROM MR. GILL MONTGOMERY TO MR.
- Reserve-Resource:: WAISSAR.
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