Ray F Brokken

Ray F. Brokken · U.S. Dept. of Agriculture, Economic Research Service

106 sayfa · 1984

Public lands / Grazing districts / Range policy

Ray F. Brokken · Commodity Economics Division, Economic Research Service

Sayfa sayısı yok · 1974

Cattle / Feeding and feeds / Mathematical models

Ray F. Brokken · Farming Systems Research, Research Division, Ministry of Agriculture

21 sayfa · 1986

Grain / Marketing / Forage plants / Vegetables

Ray F Brokken · [Supt. of Docs., U.S. G.P.O., distributor]

27 sayfa · 1980

Beef cattle / Feeding and feeds / Grain as feed

Ray F. Brokken · Economic Research Service, U.S. Dept. of Agriculture

154 sayfa · 1968

Linear programming / Animal industry / Crop yields

Ray F. Brokken · International Livestock Centre for Africa

392 sayfa · 1992

Marketing / Dairy products industry / Dairy products / Congresses