Não informado. (2002). Chemico world. Chemical Construction Corporation.
Chicagoスタイル(17版)引用形式Não informado. Chemico World. New York: Chemical Construction Corporation, 2002.
MLA(8版)引用形式Não informado. Chemico World. Chemical Construction Corporation, 2002.
警告: この引用は必ずしも正確ではありません.