Walker, D. B. 1. D. B. W. (1981). Toward a functioning federalism. Winthrop Publishers.
Chicago Style (17. basım) AtıfWalker, David B. 1927- David Bradstreet Walker. Toward a Functioning Federalism. Cambridge Mass: Winthrop Publishers, 1981.
MLA (9th ed.) AtıfWalker, David B. 1927- David Bradstreet Walker. Toward a Functioning Federalism. Winthrop Publishers, 1981.
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