Saving the ozone layer a global task.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	Swedish Society for the Conservation of Nature
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Stockholm Swedish Society for the Conservation of Nature c1990.
Pynciau:	Chlorofluorocarbons > Environmental aspects.