APA引文

Graham, E. M., & Krugman, P. R. (1989). Foreign direct investment in the United States (2nd ed.). Institute for International Economics.

Chicago Style (17th ed.) Citation

Graham, Edward Montgomery, and Paul R. Krugman. Foreign Direct Investment in the United States. 2nd ed. Washington, D.C: Institute for International Economics, 1989.

MLA引文

Graham, Edward Montgomery, and Paul R. Krugman. Foreign Direct Investment in the United States. 2nd ed. Institute for International Economics, 1989.

警告:這些引文格式不一定是100%准確.