TY - `EDBOOK` TI - Soils and tropical weathering PB - UNESCO CY - Paris PY - 1971 LA - eng SP - 149 S. T2 - Natural resources research M1 - 11 KW - Tropen / Bodenbildung CN - 72 B 1705 CN - <GG> Gba 50 CN - 190 geo 73/4508 Kp AN - UBHD-1040949 ER -