APA

Boersma, L., Science Foundation (U.S.). Research Applied to National Needs Program, N., States. Office of Water Research and Technology, U., State University. Water Resources Research Institute, O., & State University. Agricultural Experiment Station, O. (1978). Management of swine manure for the recovery of protein and biogas : final report. : Corvallis, Or. : Agricultural Experiment Station, Oregon State University.