TY - BOOK AU - Tripathi, R.P. AU - Singh, H.P. TI - Soil erosion and conservation SN - 812240305 0 U1 - 631.45 PY - 1993/// CY - Delhi PB - Wiley Eastern Limited KW - Soil - KW - Soil Science - Soil Erosion - N1 - Includes glossary and index ER -