APA-ийн эшлэл(7 дахь хэвлэлт)

Costa, D. L. (1998). The evolution of retirement: An American economic history, 1880-1990. University of Chicago Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Costa, Dora L. The Evolution of Retirement: An American Economic History, 1880-1990. Chicago: University of Chicago Press, 1998.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Costa, Dora L. The Evolution of Retirement: An American Economic History, 1880-1990. University of Chicago Press, 1998.