TY  - BOOK
AU  - Richard J. Otis
AU  - D Duncan Mara
TI  - The design of small bore sewer systems
AV  - TD678 .O85 1985.
PY  - 1985///
CY  - Washington, D.C. 
PB  -  World Bank.
KW  - Sewerage,Developing countries,Sanitary engineering
KW  - book
KW  - english
N1  -  ill. ; 28 cm
ER  -