Vernon, R., & Wells, L. T. (1976). Economic environment of international business (2d ed.). Prentice-Hall.
芝加哥风格引文Vernon, Raymond, 与 Louis T. Wells. Economic Environment of International Business. 2d ed. Englewood Cliffs, N.J: Prentice-Hall, 1976.
MLA引文Vernon, Raymond, 与 Louis T. Wells. Economic Environment of International Business. 2d ed. Prentice-Hall, 1976.
警告：这些引文格式不一定是100％准确.