The earned income credit

MLA

Campbell, Colin Dearborn and William L. Peirce. The earned income credit. Washington, D.C. : American Enterprise Institute for Public Policy Research, [1980]

APA

Campbell, C. & Peirce, W. (1980). The earned income credit. Washington, D.C. : American Enterprise Institute for Public Policy Research.

Chicago

Campbell, Colin Dearborn and William L. Peirce. The earned income credit. Washington, D.C. : American Enterprise Institute for Public Policy Research, [1980]