TY  - BOOK
AU  - Bureau of Indian Standards[BIS]
TI  - IS:5182-(Pt.13)-1991. Indian standard method for measurement of air pollution. Pt.13 : total fluorides in ambient air
U1  - IS Code 
PY  - 1991///
CY  - New Delhi
PB  - Bureau of Indian Standards
N1  - ENG
ER  -