Não informado. (1964). Market Research Abstracts. Market Research Society.
Chicagoスタイル(17版)引用形式Não informado. Market Research Abstracts. London: Market Research Society, 1964.
MLA(8版)引用形式Não informado. Market Research Abstracts. Market Research Society, 1964.
警告: この引用は必ずしも正確ではありません.