Citazione Stile APA (7a Edizione)

Langbein, L. I. (2012). Public program evaluation: A statistical guide (Second edition.). M.E. Sharpe.

Citazione stile Chigago Style (17a edizione)

Langbein, Laura Irwin. Public Program Evaluation: A Statistical Guide. Second edition. Armonk, N.Y: M.E. Sharpe, 2012.

Citatione MLA (9a ed.)

Langbein, Laura Irwin. Public Program Evaluation: A Statistical Guide. Second edition. M.E. Sharpe, 2012.