by Dreesen, David R, Gladney, Ernest S, Owens, James W, Perkins, Betty L, Wienke, Caroline L, Wangen, Lawrence E
Published in Environmental science & technology (01.10.1977)

by Simmons, K.R., Moses, S.C., Perkins, B.L.
Published in Journal of dairy science (01.09.1979)

by Simmons, K. R, Moses, S. C, Perkins, B. L
Published in Journal of dairy science (01.09.1979)

by Simmons, K.R, Moses, S.C, Perkins, B.L
Published in Journal of dairy science (01.09.1979)

by Smith, R.D, Perkins, B.L, Sniffen, C.J, Pearson, E.G
Published in Proceedings - Cornell Nutrition Conference for Feed Manufacturers (1983)