World Health Organization. (2009). Application of epidemiological principles for Public health action. World Health Organization.
芝加哥风格引文World Health Organization. Application of Epidemiological Principles for Public Health Action. New Delhi: World Health Organization, 2009.
MLA引文World Health Organization. Application of Epidemiological Principles for Public Health Action. World Health Organization, 2009.
警告：这些引文格式不一定是100％准确.