Lua APA (7ú heag.)
Ulrich, K. T., & Eppinger, S. D. (1995). Product design and development. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)
Ulrich, Karl T., agus Steven D. Eppinger. Product Design and Development. New York: McGraw-Hill, 1995.
Lua MLA (9ú heag.)
Ulrich, Karl T., agus Steven D. Eppinger. Product Design and Development. McGraw-Hill, 1995.
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