Não informado. (1971). Metallurgia and Metal Forming. Fuel and Metallurgical Journals.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Metallurgia and Metal Forming. Manchester, Inglaterra: Fuel and Metallurgical Journals, 1971.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Metallurgia and Metal Forming. Fuel and Metallurgical Journals, 1971.
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