World Health Organization. (1995). International travel and health: Vaccination requirements and health advice. World Health Organization.
Chicago Style (17th ed.) CitationWorld Health Organization. International Travel and Health: Vaccination Requirements and Health Advice. Geneva: World Health Organization, 1995.
MLA引文World Health Organization. International Travel and Health: Vaccination Requirements and Health Advice. World Health Organization, 1995.
警告:這些引文格式不一定是100%准確.