Não informado. (1970). Air pollution abstracts. Air Pollution Technical Information Center.
Chicagoスタイル(17版)引用形式Não informado. Air Pollution Abstracts. Research Triangle Park, NC: Air Pollution Technical Information Center, 1970.
MLA(8版)引用形式Não informado. Air Pollution Abstracts. Air Pollution Technical Information Center, 1970.
警告: この引用は必ずしも正確ではありません.