National urban air quality trends, 1974-1983
By: Tom Furmanczyk.
Series: Environmental protection series
Publisher: Environment Canada
Published: 1986
Place of publication: Ottawa, Ont., Canada
Language: eng
Number of pages: 62
Subjects: Air quality -- Canada; Environmental monitoring -- Canada
Notes: "October 1986."

"EPS 7/UP/1."

Bibliography: p. 62.