Yazar
joe m bohlen
4 cilt bulundu.
Cilt sonuçları
Irish farmer's adoption of 17 approved farm practices and the relationships to the use of various information sources
Joe M. Bohlen · An Foras Talu□ntais
61 sayfa · 1968
Agricultural innovations / Agriculture / Information services
Community power structure and civil defense
Joe M. Bohlen · Iowa Agricultural and Home Economics Experiment Station, Iowa State University of Science and Technology
254 sayfa · 1964
Sociology / Civil defense
Changes in the use of commercial fertilizer among Iowa farm operators, 1957-1960
Joe M. Bohlen, Iowa State University · Dept. of Economics and Sociology, Iowa State University of Science and Technology
50 sayfa · 1960
Fertilizers / Manures
Les secrets de la dynamique des groupes
Beal, George M. ; Bohlen, Joe M. ; Raudabaugh, J. Neil · Chotard et Associé
Sayfa sayısı yok · 1969
Kategori yok