Untracht, O. (1975). Metal techniques for craftsmen: A basic manual for craftsmen on the methods of forming and decorating metals. Doubleday & Company.
Cita Chicago Style (17a ed.)Untracht, Oppi. Metal Techniques for Craftsmen: A Basic Manual for Craftsmen on the Methods of Forming and Decorating Metals. New York: Doubleday & Company, 1975.
Cita MLA (8a ed.)Untracht, Oppi. Metal Techniques for Craftsmen: A Basic Manual for Craftsmen on the Methods of Forming and Decorating Metals. Doubleday & Company, 1975.
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