TY  - BOOK
AU  - Singh, Akhilesh Kumar 
AU  - Rao, S.S., ad.
TI  - A study of the status of ground level ozone-concentration at Patna 
U1  - Th 363.73875 21st ed. 
PY  - 2003///
CY  - Dehradun: 
PB  - Forest Research Institute, 
KW  - Ozone layer
N1  - Thesis - (M.Sc)-Forest Research Institute, Dehradun, 2003
ER  -