Manual of Epidemiology for District Health Management. (1989). Manual of Epidemiology for District Health Management. World Health Organization.
芝加哥风格引文Manual of Epidemiology for District Health Management. Manual of Epidemiology for District Health Management. Geneva: World Health Organization, 1989.
MLA引文Manual of Epidemiology for District Health Management. Manual of Epidemiology for District Health Management. World Health Organization, 1989.
警告：这些引文格式不一定是100％准确.