| Reference | {Deposit:: SZABO, M.W., 1967, SAND AND GRAVEL IN ALABAMA: ALABAMA GEOLOGICAL SURVEY CIRC. 44, 44 P.}{Deposit:: STATE OF ALABAMA, 1980, DIVISION OF SAFETY AND INSPECTION - STATISTICAL ANNUAL REPORT, FISCAL YEAR 1980: DEPARTMEN-T OF INDUSTRIAL RELATIONS, 53 P.}{Production:: STATE OF ALABAMA, DEPT. OF INDUSTRIAL RELATIONS, FY. 1980, P. 34.} |