Yazar
Robert Allen Kepner
6 cilt bulundu.
Cilt sonuçları
Principles of farm machinery
Robert Allen Kepner · Avi Pub. Co.
507 sayfa · 1972
Agricultural machinery / Agricultural engineering / Machines agricoles
Effectiveness of orchard heaters
Robert Allen Kepner · California Agricultural Experiment Station, The College of Agriculture, University of California
31 sayfa · 1951
Fruit / Frost protection
Operation of orchard heaters
Robert Allen Kepner · Agricultural Experiment Station
32 sayfa · 1940
Equipment and supplies / Fruit / Frost protection
The principles of orchard heating
Robert Allen Kepner · University of California, College of Agriculture, Agricultural Experiment Station
10 sayfa · 1950
Fruit / Fruit-culture / Frost protection