Não informado. (1948). Metal Treatment and Drop Forging. Fuel and Metallurgical Journals.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Metal Treatment and Drop Forging. London: Fuel and Metallurgical Journals, 1948.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Metal Treatment and Drop Forging. Fuel and Metallurgical Journals, 1948.
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