TY - BOOK AU - S K GUPTA TI - STUDY AND MANAGEMENT OF WATER RESOURCES IN ARID AND SEMI-ARID REGIONS U1 - TX551.48G959S PY - 1979/// CY - NEW DELHI PB - TODAY & TOMORROW'S KW - STUDY AND MANAGEMENT OF WATER RESOURCES IN ARID AND SEMI-ARID REGIONS ER -