000 00282nam a2200073 4500
080 _a
_b
245 _aIS: 3646 (Part III) - 1968; Code of practice for interior illumination Part III Calculation of coefficients of utilization by the BZ method
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1969
300 _a51p
999 _c33663
_d33663