The impact of air pollution on ponderosa pine
By: by William Louis Voelker.
Published: 1973
Language: eng
Number of pages: 66
Subjects: Air -- Pollution -- Environmental aspects.; Ponderosa pine.
Notes: Typescript (photocopy).

"A paper submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Forestry, 1973."

Bibliography: leaves 60-66.