Unterwiser, P. M. (1972). Forging Design Handbook. American Socety for Metals.
Čikaški stil citiranjaUnterwiser, Paul M. Forging Design Handbook. Ohio: American Socety for Metals, 1972.
MLA način citiranjaUnterwiser, Paul M. Forging Design Handbook. American Socety for Metals, 1972.
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