Não informado. (1978). Metalworking, Engineering and Marketing. News Digest.
Chicagoスタイル(17版)引用形式Não informado. Metalworking, Engineering and Marketing. Nagoya, Japão: News Digest, 1978.
MLA(8版)引用形式Não informado. Metalworking, Engineering and Marketing. News Digest, 1978.
警告: この引用は必ずしも正確ではありません.