Mohr, L. B. (1995). Impact analysis for program evaluation (2nd ed.). Sage Publications.
Cita Chicago (17th ed.)Mohr, Lawrence B. Impact Analysis for Program Evaluation. 2nd ed. Thousand Oaks, Calif.: Sage Publications, 1995.
Cita MLA (8th ed.)Mohr, Lawrence B. Impact Analysis for Program Evaluation. 2nd ed. Sage Publications, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.