Ozone
Subtitle: the earth's sunscreen
By: by Joanne Agterberg and Daniel Brassard.
Contributors: Agterberg, Joanne.; Brassard, Daniel.
Series: Backgropunf paper ; 01-4
Publisher: Library of Parliament
Published: 2001
Place of publication: Ottawa
Language: eng
Number of pages: 28
Subjects: Atmospheric ozone -- Reduction.; Ozone layer depletion.; Ultraviolet radiation -- Physiological effect.
Notes: Library keeps current issue.

6