(1978). Basic Tabulation List With Alphabetical Index. World Health Organization.
Cita Chicago (17th ed.)Basic Tabulation List With Alphabetical Index. Ginebra: World Health Organization, 1978.
Cita MLA (9th ed.)Basic Tabulation List With Alphabetical Index. World Health Organization, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.