TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Code of practice for ancillary structures in sewage system, 4111-1968   Part-4 
U1  - 628.292 
PY  - 1984///
CY  - New Delhi : 
PB  - Indian standards institution , 
ER  -