TY - GEN AU - MAL, B C TI - INTRODUCTION TO SOIL AND WATER CONSERVATION ENGINEERING U1 - 631.4 MAL/IN CY - LUDHIANA, KALYANI KW - COMPASS SURVEYING KW - DISTANCE&AREAS KW - GROUND WATER KW - IRRIGATION METHODS KW - LEVELING KW - SURFACE DRAINAGE KW - WATER EROSION KW - WATER LIFTING DEVICES KW - WIND EROSION ER -