TY  - SER
ED  -  UNESCO.
TI  -  Nature and resources
SN  -  0028-084
U1  -  551.45 
CY  -  Paris, 
PB  -  UNESCO.
KW  -  Hydrology
KW  -  Periodicals
KW  -  Natural resources
KW  -  Ecology
N1  -  "Bulletin of the International Hydrological Decade.";  Latest issue consulted: Vol. 35, no. 4 (October-Dec. 1999);  Vol. 24 complete in one no.; issue for 1989 called Special issue, bu t constitutes v. 25
ER  -