TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Code of practice for construction of floors and roofs using precast concrete waffle units  IS:10505-1983 / 
U1  - 691.327 
PY  - 1983///
CY  - New Delhi : 
PB  - Indian standards institution , 
ER  -