Heller, H. R. (1973). International trade: Theory and empirical evidence (2d ed.). Prentice-Hall.
Chicagoスタイル(17版)引用形式Heller, H. Robert. International Trade: Theory and Empirical Evidence. 2d ed. Englewood Cliffs, N.J.: Prentice-Hall, 1973.
MLA(8版)引用形式Heller, H. Robert. International Trade: Theory and Empirical Evidence. 2d ed. Prentice-Hall, 1973.
警告: この引用は必ずしも正確ではありません.