APA (7e ed.) Bronvermelding

Amacher, R. C., Haberler, G., & Willett, T. D. (1979). Challenges to a liberal international economic order. American Enterprise Institute for Public Policy Research.

Chicago (17e ed.) Bronvermelding

Amacher, Ryan C., Gottfried Haberler, en Thomas D. Willett. Challenges to a Liberal International Economic Order. Washington: American Enterprise Institute for Public Policy Research, 1979.

MLA (9e ed.) Bronvermelding

Amacher, Ryan C., et al. Challenges to a Liberal International Economic Order. American Enterprise Institute for Public Policy Research, 1979.