Library of Congress. (1968). Illinois: The sesquicentennial of statehood; an exhibition in the Library of Congress, Washington, D.C., December 3, 1968, to October 31, 1969. [For sale by the Supt. of Docs., U.S. Govt. Print. Off.].
Chicago Style (17th ed.) CitationLibrary of Congress. Illinois: The Sesquicentennial of Statehood; an Exhibition in the Library of Congress, Washington, D.C., December 3, 1968, to October 31, 1969. Washington: [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1968.
MLA (8th ed.) CitationLibrary of Congress. Illinois: The Sesquicentennial of Statehood; an Exhibition in the Library of Congress, Washington, D.C., December 3, 1968, to October 31, 1969. [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1968.
Warning: These citations may not always be 100% accurate.