Heertje, A. (1984). The U.S.A. in the world economy. Freeman, Cooper.
Chicagoスタイル(17版)引用形式Heertje, Arnold. The U.S.A. in the World Economy. San Francisco, CA: Freeman, Cooper, 1984.
MLA(9版)引用形式Heertje, Arnold. The U.S.A. in the World Economy. Freeman, Cooper, 1984.
警告: この引用は必ずしも正確ではありません.