TY - BOOK AU - Dhawan B D TI - Economics of ground water irrigation in hard rock T2 - Institute Of Economic Growth, Studies In Economic Development And Planning. 42 SN - 8185005451 U1 - X9(D24).235.N8, M6 PY - 1986/// CY - New Delhi PB - Agricole Publishing Academy India KW - Engneering ER -