Meier, K. J., & Gill, J. (2000). What works: A new approach to program and policy analysis. Westview Press.
Lua i Stíl Chicago (17ú heag.)Meier, Kenneth J., agus Jeff Gill. What Works: A New Approach to Program and Policy Analysis. Boulder, Colo.: Westview Press, 2000.
Lua MLA (8ú heag.)Meier, Kenneth J., agus Jeff Gill. What Works: A New Approach to Program and Policy Analysis. Westview Press, 2000.
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