Yazar
arthur w unger
16 cilt bulundu.
Cilt sonuçları
The Effectiveness of Nonprofessionals in Cooperative Extension Education for Low-income Farmers
Carl Gustaf Anderson, George Ray McEachern, Howard Wayne Ladewig, John Richard Cain, Lonnie L. Jones, Paul W. Unger, Raymond Arthur Dietrich, Richard L. Duble, Gholam Mustafa · Yayınevi bilinmiyor
574 sayfa · 1972
Agriculture