Yazar
James Koeber
2 cilt bulundu.
Cilt sonuçları
Sewing grain sacks
James Koeber · University of California, College of Agriculture, Agricultural Experiment Station
11 sayfa · 1923
Grain / Equipment and supplies / Sewing / Storage / Bags
Farm mechanics in the agriculture curriculum
Leonard J. Fletcher, James Koeber · Yayınevi bilinmiyor
74 sayfa · 1926
Agricultural machinery / Maintenance and repair / Agricultural engineering / Agricultural education