O'Sullivan, E., Rassel, G. R., & Berner, M. (2008). Research methods for public administrators (5th ed.). Pearson/Longman.
Chicago-viite (17. p.)O'Sullivan, Elizabethann, Gary Raymond Rassel, ja Maureen Berner. Research Methods for Public Administrators. 5th ed. New York: Pearson/Longman, 2008.
MLA-viite (8. p.)O'Sullivan, Elizabethann, et al. Research Methods for Public Administrators. 5th ed. Pearson/Longman, 2008.
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