Prashant Kumar. (2012). Product design: Creativity concepts and usability. PHI.
シカゴスタイル引用形Prashant Kumar. Product Design: Creativity Concepts and Usability. New Delhi: PHI, 2012.
MLA引用形式Prashant Kumar. Product Design: Creativity Concepts and Usability. PHI, 2012.
警告: この引用は必ずしも正確ではありません.