Reference | {Deposit:: MALHOTRA, R. & SMITH, P.A., DIR OF ILL MIN PROD, 1974, P. 74}{Deposit:: MALHOTRA, R, AND P.A. SMITH. DIRECTORY OF ILLINOIS MINERAL}{Deposit:: PRODUCERS-1974. ILLINOIS STATE GEOLOGICAL SURVEY, MINERAL}{Deposit:: NOTE 64, JULY 1976, P. 74.} |