TY  - BOOK
ED  - Indian Standards Institution                                                                                                                                                                                                                                   . 
TI  - Code of practice for daylighting of educational buildings, IS 7942-1976 / 
U1  - 628.921 
PY  - 1976///
CY  - New Delhi : 
PB  - Indian Standards Institution , 
ER  -