00562nam a2200169Ia 4500003000900000008004100009040001600050080002200066110003300088245012500121260005000246300000900296500001900305650002900324650001800353650002100371IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a083.7:534.84bISI  aIndian Standards Institution 0aIndian standard code of practice for acoustical design of auditoriums and conference hallscIndian Standards Institution  aNew DelhibIndian Standards Institutionc1963  a20p.  aIS 2526 : 1963  a Acoustical Engineering  a Standards   aNASA Thesaurus