TY  - BOOK
AU  - Salawitch, Ross J.
TI  - Twenty Questions and Answers about the Ozone Layer, 2022 Update: Scientific Assessment of Ozone Depletion, 2022 
SN  - 978-9914-733-98-3
U1  - 363.73875 SAL 
PY  - 2023///
CY  - Nairobi 
PB  -  United Nations Environment Programme
KW  - Ozone layer depletion
ER  -