Gohagan, j. k. (1980). Quantitative analysis for public policy. Mc Graw- Hill.
Cita Chicago (17th ed.)Gohagan, john kenneth. Quantitative Analysis for Public Policy. New york: Mc Graw- Hill, 1980.
Cita MLA (9th ed.)Gohagan, john kenneth. Quantitative Analysis for Public Policy. Mc Graw- Hill, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.