TY  - BOOK
AU  - Iqbal, Sithy S.
TI  - Environmental chemistry part II ; the atmosphere (AIR) Level 5 CHU 3122
SN  - 9789552306549
U1  - 577.14 
PY  - 1997///
CY  - Nugegoda
PB  - Open University of Sri Lanka
ER  -