Gaya APA
ULRICH, K, T., EPPINGER, S, D.
(2000).
Product design and development
(
2nd.ed.)
.
Boston:
Irwin-McGraw-Hill.
Gaya MLA
ULRICH, Karl, T.., EPPINGER, Steven, D..
"Product design and development".
2nd.ed.
Boston:
Irwin-McGraw-Hill,
2000.
Buku.