Não informado. (2018). Progressus: Engineering progress. Handelsblatt GmbH.
Chicagoスタイル(17版)引用形式Não informado. Progressus: Engineering Progress. Dusseldorf, Alemanha: Handelsblatt GmbH, 2018.
MLA(8版)引用形式Não informado. Progressus: Engineering Progress. Handelsblatt GmbH, 2018.
警告: この引用は必ずしも正確ではありません.