Gaya APA
Urban, G, L., Hauser, J, R. (1993).
Design and Marketing of New Products (2 ed. ).
Flores:
Prentice-Hall International Inc..
Gaya MLA
Urban, Glen, L.., Hauser, John, R..
"Design and Marketing of New Products".
2 ed.
Flores:
Prentice-Hall International Inc.,
1993.
Buku Teks.