एपीए उद्धरण

WHO. International digest of health legislation: Vol.42(1)/1991. Geneva: WHO.

शिकागो स्टाइल उद्धरण

WHO. International Digest of Health Legislation: Vol.42(1)/1991. Geneva: WHO.

एमएलए उद्धरण

WHO. International Digest of Health Legislation: Vol.42(1)/1991. Geneva: WHO.