| Reference | {Deposit:: CATHCART, JAMES B., PHOSPHATE FERTILIZER MATERIALS IN}{Deposit:: COLUMBIA - IMPORTS, USES, AND DOMESTIC SUPPLIES: JOUR.}{Deposit:: RESEARCH, U.S.G.S., VOL. 3, NO. 6, NOV.-DEC., 1975,}{Deposit:: P. 659-663.}{Deposit:: CATHCART, JAMES B., MINERALOGY, PETROLOGY AND CHEMISTRY OF}{Deposit:: PHOSPHORITE FROM THE CONEJERA AREA, BOYACA, COLOMBIA:}{Deposit:: U.S.G.S., 1975, 41P.}{Deposit:: CATHCART, J., 1972, PHOSPHATE AND BAUXITE INVESTIGATIONS,}{Deposit:: COLOMBIA: USGS OPEN FILE RPT. IR CO-26, 62 PP.}{Deposit:: ENGINEERING AND MINING JOURNAL, DEC., 1978, P.}{Deposit:: ENGINEERING AND MINING JOURNAL, FEB., 1981, P.}{Deposit:: GOMEZ, ALBERTO, ESTUDIO DEL SECTOR FERTILIZANTES EN EL GRUPO}{Deposit:: ANDINO, REPORTE PRELIMINAR: 1977.}{Deposit:: INTERNATIONAL FERTILIZER DEVELOPMENT CENTER, TECHNICAL}{Deposit:: STUDIES OF UPGRADING AND UTILIZATION OF PESCA AND SARDINATA}{Deposit:: ORES, FINAL REPORT, MAY 1977. (NOT TO BE REPRODUCED OR}{Deposit:: DISTRIBUTED WITHOUT PERMISSION OF FONADE).}{Deposit:: JAPAN CONSULTING INSTITUTE, REPORT ON THE PREFEASIBILITY}{Deposit:: SURVEY OF THE DEVELOPMENT AND UTILIZATION OF PHOSPHATE ROCK}{Deposit:: IN COLOMBIA.}{Deposit:: MC CLELLAN, M. AND LEHR, J.R., CHARACTERISTIC ROCK FROM THE}{Deposit:: PESCA REGION, COLOMBIA: TVA, MUSCLE SHOALS, ALABAMA, 1972.}{Deposit:: MOJICA, G., PEDRO, E., FOSFATOS, IN; RECURSOS MINERALES DE}{Deposit:: COLOMBIA, PULICACIONES GEOLOGICAS ESPECIALES DEL INGEOMINAS,}{Deposit:: NO. 1, BOGOTA, 1978, P. 237-268.}{Deposit:: MOJICA, G., PEDRO, E., ET AL., ROCA FOSFORICA EN EL}{Deposit:: CUADRANGULO J-12, TUNJA: INFORME NO. 1677, BOGOTA, 10/75.}{Deposit:: PHOSPHOROUS AND POTASSIUM, JAN/FEB, 1979, P. 11.}{Deposit:: RODRIGUEZ, RAUL, ROCA FOSFORICA EN EL CUADRANGULO J-13,}{Deposit:: SOGOMOSO: INFORME NO. 1676, BOGOTA, D.E., OCTOBER 1975.}{Deposit:: ZAMBRANO, O. F. AND MOJICA, G. P., DEPOSITO DE ROCA}{Deposit:: FOSFORICA DE LA CONEJERA, PESCA, BOYACA: INGEOMINAS,}{Deposit:: 1973, 15P.} |