MacLean, J. C. (1955). President and Congress: The conflict of powers. H. W. Wilson.
Chicago-viite (17. p.)MacLean, Joan Coyne. President and Congress: The Conflict of Powers. New York: H. W. Wilson, 1955.
MLA-viite (9. p.)MacLean, Joan Coyne. President and Congress: The Conflict of Powers. H. W. Wilson, 1955.
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