Douglas-fir bark as a trickling filter medium for animal waste disposal systems /
[Myron G. Cropsey and Paul H. Weswig].
APA Citation
Cropsey, M. George., Weswig, P. H. (1973). Douglas-fir bark as a trickling filter medium for animal waste disposal systems. Corvallis, Ore.: Agricultural Experiment Station, Oregon State University.
MLA Citation
Cropsey, Myron George, 1910-, and Paul H Weswig. Douglas-fir Bark As a Trickling Filter Medium for Animal Waste Disposal Systems. Corvallis, Ore.: Agricultural Experiment Station, Oregon State University, 1973.
Warning: These citations may not always be complete (especially for serials).