Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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