Παραπομπή APA
Hollins, B., & Pugh, S. (1989). Successful product design: What to do and when. London: Butterworths.
Παραπομπή Chicago StyleHollins, Bill., and Stuart Pugh. Successful Product Design: What to Do and When. London: Butterworths, 1989.
Παραπομπή MLAHollins, Bill., and Stuart Pugh. Successful Product Design: What to Do and When. London: Butterworths, 1989.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.