Cita APA (7th ed.)

Schiff, M. W., & Chang, W. (2001). Market presence, contestability, and the terms-of-trade effects of regional integration. World Bank.

Cita Chicago (17th ed.)

Schiff, Maurice W., i Won Chang. Market Presence, Contestability, and the Terms-of-trade Effects of Regional Integration. Washington, D.C: World Bank, 2001.

Cita MLA (9th ed.)

Schiff, Maurice W., i Won Chang. Market Presence, Contestability, and the Terms-of-trade Effects of Regional Integration. World Bank, 2001.