Walker, D. B. (1981). Toward a functioning federalism. Winthrop.
芝加哥风格引文Walker, David Bradstreet. Toward a Functioning Federalism. Cambridge, MA: Winthrop, 1981.
MLA引文Walker, David Bradstreet. Toward a Functioning Federalism. Winthrop, 1981.
警告：这些引文格式不一定是100％准确.