APA-ийн эшлэл(7 дахь хэвлэлт)

Béland, D., & Waddan, A. (2012). The politics of policy change: Welfare, Medicare, and social security reform in the United States. Georgetown University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Béland, Daniel, ба Alex Waddan. The Politics of Policy Change: Welfare, Medicare, and Social Security Reform in the United States. Washington, DC: Georgetown University Press, 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Béland, Daniel, ба Alex Waddan. The Politics of Policy Change: Welfare, Medicare, and Social Security Reform in the United States. Georgetown University Press, 2012.