APA-ийн эшлэл(7 дахь хэвлэлт)

Alvin Hansen Symposium on Public Policy Harvard University, Heckman, J. J., Krueger, A. B., & Friedman, B. M. (2003). Inequality in America: What role for human capital policies? MIT Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Alvin Hansen Symposium on Public Policy Harvard University, James J. Heckman, Alan B. Krueger, ба Benjamin M. Friedman. Inequality in America: What Role for Human Capital Policies? Cambridge, Mass.: MIT Press, 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Alvin Hansen Symposium on Public Policy Harvard University, et al. Inequality in America: What Role for Human Capital Policies? MIT Press, 2003.