Cita APA

National Cylinder Gas Company. Tube Turns. (1954). Tube-turn catalog 311: Welding fittings, flanges. National Cylinder Gas Company.

Citación estilo Chicago

National Cylinder Gas Company. Tube Turns. Tube-turn Catalog 311: Welding Fittings, Flanges. New York: National Cylinder Gas Company, 1954.

Cita MLA

National Cylinder Gas Company. Tube Turns. Tube-turn Catalog 311: Welding Fittings, Flanges. New York: National Cylinder Gas Company, 1954.