00592nam a2200181Ia 4500 0000016270 20251012174745.0 910925s1989 xxu i00 eng 9211164567 551.49 Charter on ground-water management as adopted by the Economic Commission for Europe at its forty-fourth session (1989) by decision E (44). New York United Nations 1989 20p. 21cm "E/ECE/1197" "ECE/ENVWA/12" United Nations Charters Water, Underground Management 10140 10140