APA引文

World Health Organization. (2003). State of the world's vaccines and immunization. World Health Organisation.

Chicago Edition Citation

World Health Organization. State of the World's Vaccines and Immunization. Geneva: World Health Organisation, 2003.

MLA引文

World Health Organization. State of the World's Vaccines and Immunization. World Health Organisation, 2003.

警告：這些引文格式不一定是100％准確.