APA (7e ed.) Bronvermelding

ULRICH KARL T. (2012). PRODUCT DESIGN AND DEVELOPMENT (4TH ED.). TATA MC GRAW HILL.

Chicago (17e ed.) Bronvermelding

ULRICH KARL T. PRODUCT DESIGN AND DEVELOPMENT. 4TH ED. NEW DELHI: TATA MC GRAW HILL, 2012.

MLA (9e ed.) Bronvermelding

ULRICH KARL T. PRODUCT DESIGN AND DEVELOPMENT. 4TH ED. TATA MC GRAW HILL, 2012.