Air pollution in the Portland metropolitan area
By: [prepared under the direction of Richard E. Hatchard, chief, Air Quality Control, Oregon State Sanitary Authority, a division of the Oregon State Board of Health]
Contributors: Hatchard, Richard E.; Oregon State Sanitary Authority.
Publisher: The Division
Published: 1963
Place of publication: [Portland, Or.?
Language: eng
Number of pages: 43
Subjects: Air -- Pollution -- Oregon -- Portland.
Notes: Cover title.

"September 1963."

Bibliography: p.43.