Halcrow, H. G. (1980). Economics of agriculture. McGraw-Hill Book Company.
Chicagoスタイル(17版)引用形式Halcrow, Harold G. Economics of Agriculture. New York: McGraw-Hill Book Company, 1980.
MLA(9版)引用形式Halcrow, Harold G. Economics of Agriculture. McGraw-Hill Book Company, 1980.
警告: この引用は必ずしも正確ではありません.