WHO. (1982). Treponemal infections. Geneva.
Chicago Edition CitationWHO. Treponemal Infections. Geneva, 1982.
MLA引文WHO. Treponemal Infections. Geneva, 1982.
警告：这些引文格式不一定是100％准确.
APA引文
WHO. (1982). Treponemal infections. Geneva.
Chicago Edition CitationWHO. Treponemal Infections. Geneva, 1982.
MLA引文WHO. Treponemal Infections. Geneva, 1982.