Não informado. (1958). Trends: German constructional engineering for export. Elsner.
Style de citation Chicago (17e éd.)Não informado. Trends: German Constructional Engineering for Export. Darmstadt, Alemanha: Elsner, 1958.
Style de citation MLA (8e éd.)Não informado. Trends: German Constructional Engineering for Export. Elsner, 1958.
Attention : ces citations peuvent ne pas être correctes à 100%.