Não informado. (1919). Mechanical Engineering. American Society of Mechanical Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Mechanical Engineering. New York: American Society of Mechanical Engineers, 1919.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Mechanical Engineering. American Society of Mechanical Engineers, 1919.
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