Supervised practice in vocational agriculture in lowa
Sweany, Harvey Paul, Starrak, J.A.
Supervised practice in vocational agriculture in lowa - Lowa 1941 - 3-32 p. - Agriculture Bulletin No. P29 \(New Series\) Lowa Agricultural Experiment Station. .
Supervised practice in vocational agriculture in lowa - Lowa 1941 - 3-32 p. - Agriculture Bulletin No. P29 \(New Series\) Lowa Agricultural Experiment Station. .