by Herring, D.R
Published in The Agricultural education magazine (1980) (1999)

by Herring D.R
Published in The Agricultural education magazine (1980) (1995)

by Herring, D.R
Published in The Agricultural education magazine (1980) (01.12.1988)

by Herring, D.R, Norris, R.J
Published in Agricultural education (1962) (01.10.1987)

by Herring, D.R, Webb, E.S
Published in Agricultural education (1962) (1975)

by Boyd, B.L, Herring, D.R, Briers, G.E
Published in Journal of extension (1992)

by Herring, D.R, Key, C.B
Published in The Agricultural education magazine (1980) (01.02.1994)

by Webb, E.S, Herring, D.R
Published in Agricultural education (1962) (1976)

by Marshall, T.A. (Portal High School, Portal, GA), Herring, D.R
Published in The Agricultural education magazine (1980) (01.07.1991)