Não informado. (2001). American Journal of Science. American Journal of Science.
Chicagoスタイル(17版)引用形式Não informado. American Journal of Science. New Haven, Conn: American Journal of Science, 2001.
MLA(8版)引用形式Não informado. American Journal of Science. American Journal of Science, 2001.
警告: この引用は必ずしも正確ではありません.