Clarke, D., & Macfarlane, M. (1999). Focus on Business: David Clarke und Michael Macfarlane (New edition.). Cornelsen & Oxford.
Chicagoスタイル(17版)引用形式Clarke, David, , Michael Macfarlane. Focus on Business: David Clarke Und Michael Macfarlane. New edition. Berlin: Cornelsen & Oxford, 1999.
MLA(8版)引用形式Clarke, David, , Michael Macfarlane. Focus on Business: David Clarke Und Michael Macfarlane. New edition. Cornelsen & Oxford, 1999.
警告: この引用は必ずしも正確ではありません.