TY - BOOK AU - Michael, A. M. AU - Ojha, T. P. TI - Principles of Agricultural Engineering: Surveying, Irrigation, Drainage Soil And Water Conservation SN - 8186321152 U1 - 631.3 PY - 1999/// CY - New Delhi PB - Jain Brothers KW - Agriculture and related technologies KW - Technology (Applied sciences) KW - Agricultural machinery ER -