Cita APA (7th ed.)
International Institute of Welding. Welding in the world. Pergamon.
Cita Chicago (17th ed.)
International Institute of Welding. Welding in the World. Oxford, UK: Pergamon.
Cita MLA (9th ed.)
International Institute of Welding. Welding in the World. Pergamon.
Atenció: Aquestes cites poden no estar 100% correctes.