TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Code of practice for acoustical design of auditoriums and conferance halls,IS:2526-1963 / 
U1  - 534.84 
PY  - 1985///
CY  -  : 
PB  - ISI , 
ER  -