Não informado. (2001). Yearbook. American Public Health Association.
Chicagoスタイル(17版)引用形式Não informado. Yearbook. New York: American Public Health Association, 2001.
MLA(8版)引用形式Não informado. Yearbook. American Public Health Association, 2001.
警告: この引用は必ずしも正確ではありません.