APA-ийн эшлэл(7 дахь хэвлэлт)

Munnell, A. H., & Sass, S. A. (2008). Working longer: The solution to the retirement income challenge. Brookings Institution Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Munnell, Alicia Haydock, ба Steven A. Sass. Working Longer: The Solution to the Retirement Income Challenge. Washington, D.C.: Brookings Institution Press, 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Munnell, Alicia Haydock, ба Steven A. Sass. Working Longer: The Solution to the Retirement Income Challenge. Brookings Institution Press, 2008.