APA引文

World Bank. (1981). Agricultural research: Sector policy paper June 1981. World Bank.

Chicago Edition Citation

World Bank. Agricultural Research: Sector Policy Paper June 1981. Washington,D C: World Bank, 1981.

MLA引文

World Bank. Agricultural Research: Sector Policy Paper June 1981. World Bank, 1981.

警告：這些引文格式不一定是100％准確.