TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Code of practice for ancillary structures in sewerage system  IS:4111, Part-2 / 
U1  - 628.282 
PY  - 1986///
CY  - New Delhi : 
PB  - Indian Standards Institution , 
ER  -