Παραπομπή σε μορφή APA (7η εκδ.)

Fitz-enz, J. (2000). The ROI of human capital: Measuring the economic value of employee performance. AMACOM.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Fitz-enz, Jac. The ROI of Human Capital: Measuring the Economic Value of Employee Performance. New York, NY: AMACOM, 2000.

Παραπομπή σε μορφή MLA (8th εκδ.)

Fitz-enz, Jac. The ROI of Human Capital: Measuring the Economic Value of Employee Performance. AMACOM, 2000.