Cita APA (7th ed.)

Rossi, P. H., Lipsey, M. W., & Freeman, H. E. (2004). Evaluation: A systematic approach (7th ed.). Sage.

Cita Chicago (17th ed.)

Rossi, Peter H., Mark W. Lipsey, i Howard E. Freeman. Evaluation: A Systematic Approach. 7th ed. Thousand Oaks, CA: Sage, 2004.

Cita MLA (8th ed.)

Rossi, Peter H., et al. Evaluation: A Systematic Approach. 7th ed. Sage, 2004.