by Trapp, J.N, Walker, O.L
Year of Publication 1986

by Anderson K.B, Walker O.L
Published in A.E. Paper. - Oklahoma State University (1976)

by Rockeman, K.A, Walker, O.L
Published in Oklahoma Current Farm Economics (1979)

by Watt, D.L, Lippke, L.A, Walker, O.L
Published in Special circular (Ohio Agricultural Research and Development Center) (USA) (01.12.1995)

by Walker O.L
Published in ESCS United States Dept. of Agriculture Economics, Statistics and Cooperatives Service (1979)

by Rodriguez, A, Trapp, J.N, Walker, O.L, Bernardo, D.J
Published in Agricultural systems (1990)

by Rodriguez, A, Trapp, J.N, Walker, O.L, Bernardo, D.J
Published in Agricultural systems (1990)

by Walker, O.L
Published in Oklahoma current farm economics (1974)

by Lansford, N.H. Jr, Freeman, D.W, Topliff, D.R, Walker, O.L
Published in Journal of agribusiness (1998)

by Little R.D, Buchanan D.S, Walker O.L, Lusby K.S
Published in Research report P - Oklahoma Agricultural Experiment Station (USA). no. 922 (1991)

by Mapp, H.P, Walker, O.L
Published in Current farm economics - Agricultural Experiment Station, Division of Agriculture, Oklahoma State University (USA) (01.12.1986)

by Fusselman M.A, Walker O.L
Published in Research Report P Oklahoma Agricultural Experiment Station (1982)

by Walker, O.L, Mapp, H.P
Published in Current farm economics - Agricultural Experiment Station, Division of Agriculture, Oklahoma State University (USA) (01.06.1984)

by Fusselman, M, Walker, O.L
Published in A.E. Paper - Oklahoma State University, Dept. of Agricultural Economics (USA) (1981)

by Anderson K.B, Walker O.L
Published in Oklahoma Current Farm Economics (1976)

by Walker, O.L, Nelson, A.G
Published in A.E. - University of Illinois, Department of Agricultural Economics (USA) (01.06.1980)

by Doye, D.G. (Oklahoma State University.), Walker, O.L
Published in Current farm economics (USA) (1995)

by Walker, O.L, Minnick, D.L
Published in Bulletin B - Oklahoma Agricultural Experiment Station (USA) (01.07.1977)

by Anderson, K.B, Walker, O.L
Published in Southern Journal of Agricultural Economics (USA) (01.07.1977)

by Walker, O.L, Nelson, A.G
Published in Research Report P - Oklahoma Agricultural Experiment Station (USA) (01.03.1977)