Prashant Kumar. (2012). Product design: Creativity concepts and usability. PHI.
Chicago-стиль цитированияPrashant Kumar. Product Design: Creativity Concepts and Usability. New Delhi: PHI, 2012.
MLA-цитированиеPrashant Kumar. Product Design: Creativity Concepts and Usability. PHI, 2012.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.