索姆 & 柯娜尔. (2016). 德国制造业创新之谜: Low-tech innovation: competitiveness of the German manufacturing sector. 人民邮电出版社.
Chicago (17e ed.) Bronvermelding索姆 en 柯娜尔. 德国制造业创新之谜: Low-tech Innovation: Competitiveness of the German Manufacturing Sector. 人民邮电出版社, 2016.
MLA (8e ed.) Bronvermelding索姆 en 柯娜尔. 德国制造业创新之谜: Low-tech Innovation: Competitiveness of the German Manufacturing Sector. 人民邮电出版社, 2016.
Let op: Deze citaties zijn niet altijd 100% accuraat.