Não informado. (1972). Machinery and steel. Association of Austrian Machinery and Steel Construction Industries.
Cita Chicago Style (17a ed.)Não informado. Machinery and Steel. Vienna: Association of Austrian Machinery and Steel Construction Industries, 1972.
Cita MLA (8a ed.)Não informado. Machinery and Steel. Association of Austrian Machinery and Steel Construction Industries, 1972.
Precaución: Estas citas no son 100% exactas.