Não informado. (1973). Bulletin of the Pan American Health Organization. Pan American Health Organization.
Style de citation Chicago (17e éd.)Não informado. Bulletin of the Pan American Health Organization. Washington: Pan American Health Organization, 1973.
Style de citation MLA (8e éd.)Não informado. Bulletin of the Pan American Health Organization. Pan American Health Organization, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.