Patton, C. V., & Sawicki, D. S. (2013). Basic methods of policy analysis and planning (3rd ed.). Pearson.
Lua i Stíl Chicago (17ú heag.)Patton, Carl V., agus David S. Sawicki. Basic Methods of Policy Analysis and Planning. 3rd ed. Upper Saddle River, N.J.: Pearson, 2013.
Lua MLA (8ú heag.)Patton, Carl V., agus David S. Sawicki. Basic Methods of Policy Analysis and Planning. 3rd ed. Pearson, 2013.
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