Ulrich Karl T. (2014). Product Design and Development (4th.). Tata McGraw -Hill.
Chicago-čujuhus (17. p.)Ulrich Karl T. Product Design and Development. 4th. New Delhi: Tata McGraw -Hill, 2014.
MLA-čujuhus (9. p.)Ulrich Karl T. Product Design and Development. 4th. Tata McGraw -Hill, 2014.
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