Não informado. (2001). Scientific Publication. Pan American Sanitary Bureau.
Chicagoスタイル(17版)引用形式Não informado. Scientific Publication. Washington: Pan American Sanitary Bureau, 2001.
MLA(8版)引用形式Não informado. Scientific Publication. Pan American Sanitary Bureau, 2001.
警告: この引用は必ずしも正確ではありません.