World Health Organization. Supplementary booklet.
芝加哥风格引文World Health Organization. Supplementary Booklet.
MLA引文World Health Organization. Supplementary Booklet.
警告：这些引文格式不一定是100％准确.
APA引文
World Health Organization. Supplementary booklet.
芝加哥风格引文World Health Organization. Supplementary Booklet.
MLA引文World Health Organization. Supplementary Booklet.