Halcrow, H. G. (1980). Economics of agriculture. Mc Graw Hill Book company.
シカゴスタイル引用形Halcrow, H G. Economics of Agriculture. NewYork: Mc Graw Hill Book company, 1980.
MLA引用形式Halcrow, H G. Economics of Agriculture. Mc Graw Hill Book company, 1980.
警告: この引用は必ずしも正確ではありません.