TY  - BOOK
AU  - United nations
ED  - United Nations.
TI  - Long-term planning of water management: proceedings of the Seminar on Long-Term Planning of Water Management, Zlatni Piasatzi, Bulgaria, 17-22 May 1976
U1  - 333.91 
PY  - 1976///
CY  - New York, 
PB  -  United Nations
KW  -  Water resources development
KW  - Congresses
N1  -  At head of title: Economic Commission for Europe; "United Nations publication. Sales no. E.76.II.E.27.";  Includes bibliographical references
ER  -