Não informado. (1970). Pollution Abstracts. Cambridge Scientific Abstracts.
Chicagoスタイル(17版)引用形式Não informado. Pollution Abstracts. Bethesda, Md: Cambridge Scientific Abstracts, 1970.
MLA(8版)引用形式Não informado. Pollution Abstracts. Cambridge Scientific Abstracts, 1970.
警告: この引用は必ずしも正確ではありません.