Hard Rock

Burt,Reynold B. The Hard-Rock Phosphate Reserve Acquired By T.V.A. In Marion and Citrus Counties, Fla. 1950-1961. For Zellars-Williams, Inc. March 17,1978.Cole, Alan. Report On History Of Florida Phosphate Industry Prepared For Zellars-Williams, Inc. 1978.General Highway Map, Citrus Co. Fla.: DEPARTMENT OF TranPORTATION, July 1975.D.B.Kibler, Jr. Mining And Preparation Of Fla. Hardrock Phosphate, MINING AND METALLURGY, P. 457-78, OCT, 1944.Dunnellon, Holder, Stokes Ferry Quadrangles, Florida 7.5 Min Series, 1954.Zellars-Williams Inc,1978, Evaluation Of The Phosphate Deposits Of Florida Using The Minerals Availability System: Bumines Open File Report 112-78, Ntis: Pb 286-648/As,196 P.STOKES FERRY, HOLDER QUADRANGLES FLORIDA, 71/2 MINUTE SERIESDAVENPORT, J.E., FRANK CARROLL, G.W. KIEFFER AND S.C. WATKIN, BENEFICIATION OF FLORIDA HARD-ROCK PHOSPHATE. I&EC PROCESS AND DESIGN DEVELOPMENT, VOL 8, PP 527-33, OCT 1969.DAVENPORT, J.E. AND S.C. WATKINS. BENEFICIATION OF FLORIDA PHOSPHATE SLIME. I&EC PROCESS AND DESIGN DEVELOPMENT, PP 533-9, OCT 1969.