Cita APA (7th ed.)

Tobin, J., & Wallis, W. A. (1968). Welfare programs: An economic appraisal. American Enterprise Institute for Public Policy Research.

Cita Chicago (17th ed.)

Tobin, James, i W. Allen Wallis. Welfare Programs: An Economic Appraisal. Washington: American Enterprise Institute for Public Policy Research, 1968.

Cita MLA (8th ed.)

Tobin, James, i W. Allen Wallis. Welfare Programs: An Economic Appraisal. American Enterprise Institute for Public Policy Research, 1968.