एपीए उद्धरण

Ratanawijitrasin, S., & Wondemagegnehu, E. (2002). Effective drug regulation: A multicountry study. World Health Organisation.

शिकागो स्टाइल उद्धरण

Ratanawijitrasin, Sauwakon, और Eshetu Wondemagegnehu. Effective Drug Regulation: A Multicountry Study. Geneva: World Health Organisation, 2002.

एमएलए उद्धरण

Ratanawijitrasin, Sauwakon, और Eshetu Wondemagegnehu. Effective Drug Regulation: A Multicountry Study. World Health Organisation, 2002.