Não informado. (1999). Environmental Science & Technology. American Chemical Society.
Chicagoスタイル(17版)引用形式Não informado. Environmental Science & Technology. Washington: American Chemical Society, 1999.
MLA(8版)引用形式Não informado. Environmental Science & Technology. American Chemical Society, 1999.
警告: この引用は必ずしも正確ではありません.