APA引文

Keesing,Donald B. (1979). Trade policy for developing countries. World Bank.

Chicago Edition Citation

Keesing,Donald B. Trade Policy for Developing Countries. Washington: World Bank, 1979.

MLA引文

Keesing,Donald B. Trade Policy for Developing Countries. World Bank, 1979.

警告：這些引文格式不一定是100％准確.