World Health Organization. (1987). Who drug information (First edition.). World Health Organization.
Cita Chicago (17th ed.)World Health Organization. Who Drug Information. First edition. Geneve: World Health Organization, 1987.
Cita MLA (8th ed.)World Health Organization. Who Drug Information. First edition. World Health Organization, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.