HEATHFIELD, D. (1992). Modern Economics David Heathfield, Mark Russel. Harvester Wheatsheaf.
Chicagoスタイル(17版)引用形式HEATHFIELD, David. Modern Economics David Heathfield, Mark Russel. Harvester Wheatsheaf, 1992.
MLA(8版)引用形式HEATHFIELD, David. Modern Economics David Heathfield, Mark Russel. Harvester Wheatsheaf, 1992.
警告: この引用は必ずしも正確ではありません.