Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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