000
00299pam a2200121a 44500
008
140414b1977 xxu||||| |||| 00| 0 eng d
245
_a
Hydrological maps
_c
260
_a
PARIS
_b
UNESCO
_c
1977
650
_a
HYDROLOGICAL MAPS
650
_a
HYDROLOGIC
690
_a
HYDRAULIC ENGINEERING
906
_a
7759
999
_c
7444
_d
7444