APA ציטוט

Freeman, C. (1981). Technical innovation and national economic performance. Aalborg Unversity Press: Institute of production.

Trích dẫn kiểu Chicago

Freeman, C. Technical Innovation and National Economic Performance. Aalborg Unversity Press: Institute of production, 1981.

ציטוט MLA

Freeman, C. Technical Innovation and National Economic Performance. Aalborg Unversity Press: Institute of production, 1981.