00634nam a2200169Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 92-1-119407-5 NITIL NITIL 21st 333.9106 U58P United Nations. Economic and social commission for Asia and the Pacific Bangkok, Thailand Proceedings of the regional seminar on systems analysis for water resources development New York United Nations 1985 v, 163p. Water resources series; no. 61 Water resources development; Natural resources; Water conservation BKS 1411 1411 0 0 DDC 0 0 NITIL NITIL 2019-04-02 0 333.9106 U58P 124498 2019-04-02 00:00:00 2019-04-02 BKS