Παραπομπή σε μορφή APA (7η εκδ.)

Gruber, J., & Wise, D. A. (1999). Social security and retirement around the world. University of Chicago Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gruber, Jonathan, και David A. Wise. Social Security and Retirement Around the World. Chicago: University of Chicago Press, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Gruber, Jonathan, και David A. Wise. Social Security and Retirement Around the World. University of Chicago Press, 1999.