Trends in visibility at Salem, Oregon
Subtitle: 1958-1967.
By: [By] Neil Berg and William P. Lowry.
Contributors: Lowry, William P., 1927-
Published: 1968
Place of publication: [n.p
Language: eng
Number of pages: 10
Subjects: Air -- Pollution -- Oregon -- Salem.
Notes: "Paper presented at the Annual Meeting, Pacific Northwest International Section, Air Pollution Control Association, Vancouver, B.C., November 21, 1968."

Includes bibliography.