Oregon State University. Extension Service; Throckmorton, E. (Edith); Powell, J. (Jan)(Corvallis, Or. : Extension Service, Oregon State University, 1992-06)
Oregon State University. Extension Service; Foster, S. (Susan); Duvall, C. (Clyde); Powell, J. (Jan)(Corvallis, Or. : Extension Service, Oregon State University, 1992-06)
Oregon State University. Extension Service; Throckmorton, E. (Edith); Powell, J. (Jan)(Corvallis, Or. : Extension Service, Oregon State University, 1992-06)
Oregon State University. Extension Service; Jewell, M. (Maggie); Powell, J. (Jan)(Corvallis, Or. : Extension Service, Oregon State University, 1992-06)
Oregon State University. Extension Service; Rogers, P. (Patrick); Powell, J. (Jan)(Corvallis, Or. : Extension Service, Oregon State University, 1992-06)
