White, L. G., & Clark, R. P. (1990). Political analysis: : technique and practice (2nd ed.). Brooks-Cole.
Cita Chicago Style (17a ed.)White, Louise G., y Robert P. Clark. Political Analysis: : Technique and Practice. 2nd ed. Pacific Grove, California: Brooks-Cole, 1990.
Cita MLA (9a ed.)White, Louise G., y Robert P. Clark. Political Analysis: : Technique and Practice. 2nd ed. Brooks-Cole, 1990.
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