TY  - BOOK
AU  - Pickford John Ed.
TI  - Water, sanitation, environment and development
T2  - Water Engineering and Development Centre Conference papers,19
SN  - 1853392405
U1  - U6715:(G:55), N4 
PY  - 1994///
CY  - London
PB  - Intermediate Technology Publications UK       
KW  - Geoparphy
N1  - Bib chapterwise
ER  -