000 00555nam a22001457a 4500
008 230224b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aProgramme on exchange and transfer of information
_b/International reference centre for community water supply and sanitation
260 _aParis:
_bUnited Nations Educational Scientific and Cultural Organization
_c1981
300 _a337p.
500 _3Vol.1 (Poetri reference manual)
650 _aInformation
653 _aManual
942 _2udc
_cREF
999 _c3957
_d3957