Παραπομπή σε μορφή APA (7η εκδ.)

Γεωργαντά, Ζ. (1993). Measurement errors and the indirect effects of R & D on productivity growth: The U.S. manufacturing sector. Centre of Planning and Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Γεωργαντά, Ζωή. Measurement Errors and the Indirect Effects of R & D on Productivity Growth: The U.S. Manufacturing Sector. Athens: Centre of Planning and Economic Research, 1993.

Παραπομπή σε μορφή MLA (8th εκδ.)

Γεωργαντά, Ζωή. Measurement Errors and the Indirect Effects of R & D on Productivity Growth: The U.S. Manufacturing Sector. Centre of Planning and Economic Research, 1993.