Freeman, J. L. (1955). The political process: Executive bureau-legislative committee relations. Doubleday.
Chicago Style (17. basım) AtıfFreeman, John Leiper. The Political Process: Executive Bureau-legislative Committee Relations. Garden City, N.Y: Doubleday, 1955.
MLA (9th ed.) AtıfFreeman, John Leiper. The Political Process: Executive Bureau-legislative Committee Relations. Doubleday, 1955.
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