Welch, S., & Comer, J. C. (1988). Quantitative methods for public administration: Techniques and applications (2nd ed.). Harcourt Brace College.
Citace podle Chicago (17th ed.)Welch, Susan, a John C. Comer. Quantitative Methods for Public Administration: Techniques and Applications. 2nd ed. Fortworth: Harcourt Brace College, 1988.
Citace podle MLA (9th ed.)Welch, Susan, a John C. Comer. Quantitative Methods for Public Administration: Techniques and Applications. 2nd ed. Harcourt Brace College, 1988.
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