Παραπομπή σε μορφή APA (7η εκδ.)

Hilsen, A. I., & Olsen, D. S. (2021). The Importance and Value of Older Employees: Wise Workers in the Workplace. Springer Nature.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hilsen, Anne Inga, και Dorothy Sutherland Olsen. The Importance and Value of Older Employees: Wise Workers in the Workplace. Springer Nature, 2021.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hilsen, Anne Inga, και Dorothy Sutherland Olsen. The Importance and Value of Older Employees: Wise Workers in the Workplace. Springer Nature, 2021.