Gaya APA
Ulrich, K, T., Eppinger, S, D. (2012).
Product Design and Development .
SINGAPORE:
McGRAW- ill International Editions.
Gaya MLA
Ulrich, Karl, T., Eppinger, Steven, D.
"Product Design and Development".
SINGAPORE:
McGRAW- ill International Editions,
2012.
Text.