Library of Congress. Legislative Reference Service & Tansill, C. C. (1927). Documents illustrative of the formation of the union of the American states. G.P.O..
Dyfyniad Arddull ChicagoLibrary of Congress. Legislative Reference Service and Charles Callan Tansill. Documents Illustrative of the Formation of the Union of the American States. Washington: G.P.O., 1927.
Dyfyniad MLALibrary of Congress. Legislative Reference Service and Charles Callan Tansill. Documents Illustrative of the Formation of the Union of the American States. G.P.O., 1927.
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