Reference | {Deposit:: MCKNIGHT, E.T., NEWMAN, W.L., AND HEYL, A.V., JR. (COMPILERS), 1962, ZINC IN THE UNITED STATES, EXCLUSIVE OF ALASKA AND HAWAII: USGS MINERAL INV. RESOURCE MAP MR-19, SEPARATE TEXT, 18 P.}{Deposit:: MCKNIGHT, E.T. AND FISCHER, R.P., 1970, GEOLOGY AND ORE DEPOSITS OF THE PICHER FIELD, OKLAHOMA AND KANSAS: USGS PROF. PAPER 588, P. 165} |