Não informado. (1973). Bulletin of the Pan American Health Organization. Pan American Health Organization.
Chicagoスタイル(17版)引用形式Não informado. Bulletin of the Pan American Health Organization. Washington: Pan American Health Organization, 1973.
MLA(8版)引用形式Não informado. Bulletin of the Pan American Health Organization. Pan American Health Organization, 1973.
警告: この引用は必ずしも正確ではありません.