1982 Management Systems for High Density Walnut Orchards Ramos, D., Kay Ryugo, William Olson, Joe Osgood, William Krueger, Ronald Snyder. 1982.
1991 Evaluation of Walnut Under High Density Planting and Management Systems Ramos, D., W. Olson, J. Osgood, W. Krueger, G.S. Sibbett, W. Reil, K. Kelley, R. Snyder, K. Ryugo. 1991.
1991 New Approaches to Control Walnut Blight Schroth, Milton, Bill Olson, Art McCain, Joe Osgood, Mavis Date-Chong Hendson, Yung-An Lee, Beth Teviotdale. 1991.
1990 New Approaches to Control Walnut Blight Schroth, Milton, Joe Osgood, Bill Olson, Art McCain, Mavis Chong Hendson, Yung-Ann Lee. 1990.
1990 Evaluation of Walnut Under High Density Planting and Management Systems Ramos, D., W. Olson, J. Osgood, W. Krueger, G. S. Sibbett, W. Reil, L. Hendricks, K. Kelly, R. Snyder, K. Ryugo. 1990.
1989 Evaluation of Walnut Under High Density Planting and Management Systems Ramos, D., W. Olson, J. Osgood, W. Krueger, G. S. Sibbett, W. Reil, L. Hendricks, K. Kelly, R. Snyder, K. Ryugo. 1989.
1988 Evaluation of Walnut Under High Density Planting and Management Systems Ramos, D., W. Olson, J. Osgood, W. Krueger, G. S. Sibbett, W. Reil, L. Hendricks, K. Kelly, R. Snyder, K. Ryugo. 1988.
1987 Evaluation of Walnut Under High Density Planting and Management Systems Ramos, D., W. Olson, J. Osgood, W. Krueger, G. S. Sibbett, W. Reil, L. Hendricks, R. Snyder, K. Ryugo. 1987.
1986 Management Systems for High Density Walnut Orchards Ramos, D., W. Olson, J. Osgood, W. Krueger, G. S. Sibbett, W. Reil, L. Hendricks, R. Snyder, K. Ryugo. 1986.
1984 Management Systems for High Density Walnut Orchards Ramos, D., K. Ryugo, W. Olson, J. Osgood, W. Krueger, L. Hendricks, S. Sibbett, W. Reil, R. Snyder. 1984
