TY  - BOOK
AU  - Watt,S.B.
AU  - Wood,W.E.
TI  - Hand dug wells and their construction
SN  - 0903031272 :
AV  - TD407 .W37
U1  - 628.114 19
PY  - 1976///
CY  - London
PB  - Intermediate Technology Publications
KW  - Wells
KW  - Handbooks, manuals, etc
KW  - Engenharia Hidráulica
UR  - http://www.loc.gov/catdir/enhancements/fy1117/77371828-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy1208/77371828-b.html
ER  -