Cita APA (7th ed.)

Langbein, L. I., & Felbinger, C. L. (2006). Public program evaluation: A statistical guide. M.E. Sharpe.

Cita Chicago (17th ed.)

Langbein, Laura Irwin, i Claire L. Felbinger. Public Program Evaluation: A Statistical Guide. Armonk, N.Y: M.E. Sharpe, 2006.

Cita MLA (9th ed.)

Langbein, Laura Irwin, i Claire L. Felbinger. Public Program Evaluation: A Statistical Guide. M.E. Sharpe, 2006.