Não informado. (1967). Communications designers digest. Douglas Communications.
Chicagoスタイル(17版)引用形式Não informado. Communications Designers Digest. New York: Douglas Communications, 1967.
MLA(8版)引用形式Não informado. Communications Designers Digest. Douglas Communications, 1967.
警告: この引用は必ずしも正確ではありません.