Foeppel, William G.; Hintze, Roland; Burke, Douglas Winston, 1920-; Dow, A. I.; Hagood, Mel A.; Hagel, G. (Ted); Thornton, Robert Earl, 1933-(Pullman, Washington : Washington State University. Extension., 1975-04)
Heinemann, W. W.; Evans, David W. (David William), 1933-; Morrison, Kenneth J.; Dow, A. I.; Parker, Robert, 1941-(Pullman, Washington : Washington State University. Extension., 1979-08)
Dow, A. I.; Morrison, Kenneth J.; Mitchell, Ladd A.; Evans, David W. (David William), 1933-; Heinemann, W. W.(Pullman, Washington : Washington State University. Extension., 1977-10)
Foeppel, William G.; Hintze, Roland; Burke, Douglas Winston, 1920-; Dow, A. I.; Hagood, Mel A.; Hagel, G. (Ted); Thornton, Robert Earl, 1933-(Pullman, Washington : Washington State University. Extension., 1979-01)