TY  - RPRT
AU  - United Nations Environment Programme
AU  - United Nations Educational, Scientific and Cultural Organization
PY  - 2002
SN  - 92-807-2131-3
UR  - https://wedocs.unep.org/handle/20.500.11822/8135
LA  - English
A3  - United Nations Environment Programme
TI  - Survey methods: groundwater, recharge in arid and semi-arid regions
M3  - Technical report
ER  -