TY - BOOK AU - Bimal Chandra Mal TI - Introduction to soil and water conservation engineering: : surveying irrigation, drainage and soil conservation SN - 9789327298109 U1 - 631.45 PY - 2017/// CY - Ludhiana PB - Kalyani Publishers KW - Compass surveying KW - Plane table surveying KW - Water lifting devices ER -