TY  - BOOK
AU  - Bojkov, Rumen D
ED  - United Nations (UNO)
ED  - United Nations Economic and Social Affairs (UNESA)
TI  - The changing ozone layer
AV  - UNO(02)1995/2 
PY  - 1995///
CY  - New York : 
PB  - United Nations
KW  - OZONE LAYER
KW  - CLIMATE
ER  -