Yazar
experiment station and extension service
7 cilt bulundu.
University of Florida. Agricultural college, experiment station and extension service. · Cooperative extension work in agriculture and home economics
Sayfa sayısı yok · 1933
Ornamental Plants / Gardening
Kansas Agricultural Experiment Station, Kansas State University. Agricultural Experiment Station and Cooperative Extension Service · Kansas State University Agricultural Experiment Station and Cooperative Extension Service
Sayfa sayısı yok · 2000
Agriculture / Research / Agricultural experiment stations / Agricultural extension work
G. S. Klemmedson, Colorado Agricultural and Mechanical College. Extension Service, Colorado Agricultural Experiment Station · Colorado Agricultural College, Colorado Experiment Station
32 sayfa · 1930
Taxation
Iowa State College. Agricultural and Home Economics Experiment Station, Iowa State College. Cooperative Extension Service, Iowa State College. Center for Agricultural Adjustment · Iowa State College
42 sayfa · 1957
Agriculture / Economic aspects
Iowa State College. Agricultural and Home Economics Experiment Station, Ames. Extension Service in Agriculture and Home Economics Iowa. State College of Agriculture and Mechanic Arts · Yayınevi bilinmiyor
23 sayfa · 1947
Soil conservation / Agriculture
T. C. Priest, United States. Soil Conservation Service, Iowa Agriculture and Home Economics Experiment Station, Iowa State University. Cooperative Extension Service, Iowa. Department of Soil Conservation · Dept. of Agriculture, Soil Conservation Service
188 sayfa · 1979
Soils / Maps