Oregon State University. Extension Service.; Cook, Gordon Henry; Zimmerman, Martin (Martin Joseph); Burr, Ronald J.(Corvallis, Or. : Extension Service, Oregon State University, 1974)
Oregon State University. Extension Service.; Ewalt, H. P.; Anderson, D. E. (Donald Eugene)(Corvallis, Or. : Extension Service, Oregon State University, 1968)
Oregon State University. Extension Service.; Adams, H. P. (Holyoke Purinton), 1922-; Bodyfelt, F. W. (Floyd W.), 1937-; Gamroth, M. J. (Michael J.)(Corvallis, Or. : Extension Service, Oregon State University, 1993-05)
Oregon State University. Extension Service.; Adams, H. P. (Holyoke Purinton), 1922-; Bodyfelt, F. W. (Floyd W.), 1937-(Corvallis, Or. : Extension Service, Oregon State University, 1973-12)
Oregon State University. Extension Service.; King, Arthur Solomon, 1906-1972; Shearer, M. N.; Stebbins, R. L.(Corvallis, Or. : Extension Service, Oregon State University, 1964)