TY - BOOK AU - Troeh, Frederick R. AU - Donahue, Roy L. AU - Hobbs, J. Arthur TI - Soil and Water Conservation production and environmental Protection SN - 0130968072 U1 - 631.45 PY - 2004/// CY - New Jersey PB - Prentice Hall KW - Agriculture and related technologies KW - Technology (Applied sciences) KW - Soil conservation KW - Water conservation ER -