The ozone primer.
Contributors: Canada. Environment Canada.
Publisher: Environment Canada
Published: 1999
Place of publication: [Ottawa, Ont.]
Language: eng
Number of pages: 28
Subjects: Ozone layer.; Ozone layer depletion.; Atmospheric ozone.; Environmental protection -- Canada.
Other titles: Couche d'ozone
Notes: Text in English and French on inverted pages.
Cover title.