WHO. A guide for epidemiological studies of oral manifestation of HIV infection. Geneva: WHO.
Trích dẫn kiểu ChicagoWHO. A Guide for Epidemiological Studies of Oral Manifestation of HIV Infection. Geneva: WHO.
MLA引文WHO. A Guide for Epidemiological Studies of Oral Manifestation of HIV Infection. Geneva: WHO.
警告:這些引文格式不一定是100%准確.