Northern Ireland. Dept. of Agriculture. Economics and Statistics Division & Northern Ireland. Dept. of Agriculture. Economics and Statistics Division. (1980). Economic features of barley production in Northern Ireland, 1979. Economics and Statistics Division, Dept. of Agriculture, N.I..

Northern Ireland. Dept. of Agriculture. Economics and Statistics Division and Northern Ireland. Dept. of Agriculture. Economics and Statistics Division. Economic Features of Barley Production in Northern Ireland, 1979. Economics and Statistics Division, Dept. of Agriculture, N.I., 1980.