TY - BOOK AU - Nyambok, Isaac AU - TI - Geosciences and the environment SN - 9966846204 AV - QE40 .N6 1993 PY - 1993/// CY - Nairobi, Kenya PB - Nairobi University Press KW - Earth sciences KW - Geology KW - Environment N1 - Includes references and index ER -