Não informado. (1959). Automatic Welding. British Welding Research Association.
Chicagoスタイル(17版)引用形式Não informado. Automatic Welding. London: British Welding Research Association, 1959.
MLA(8版)引用形式Não informado. Automatic Welding. British Welding Research Association, 1959.
警告: この引用は必ずしも正確ではありません.