Douglas-fir bark as a trickling filter medium for animal waste disposal systems
By: [Myron G. Cropsey and Paul H. Weswig].
Contributors: Weswig, Paul H. 1912-
Series: Technical bulletin / Oregon State University, Agricultural Experiment Station -- 124.; Technical bulletin (Oregon State University. Agricultural Experiment Station) -- 124.
Publisher: Agricultural Experiment Station, Oregon State University
Published: 1973
Place of publication: Corvallis, Or
Language: eng
Number of pages: 11
Subjects: Bark -- Utilization.; Waste disposal.; Animal waste.; Trickling filters.
Other titles: Douglas fir bark as a trickling filter medium for animal waste disposal systems.
Notes: Cover title.

Bibliography: p. 11.