APA

United States, . (1968). Carl Sandburg Home National Historic Site: hearing, 90th Congress, 2d session on S. 3050, Sept. 12, 1968. [Washington, D.C.]: .

Chicago

United States, . 1968. Carl Sandburg Home National Historic Site: hearing, 90th Congress, 2d session on S. 3050, Sept. 12, 1968. [Washington, D.C.]: .

Harvard

United States, . (1968). Carl Sandburg Home National Historic Site: hearing, 90th Congress, 2d session on S. 3050, Sept. 12, 1968. [Washington, D.C.]: .

MLA

United States, . Carl Sandburg Home National Historic Site: hearing, 90th Congress, 2d session on S. 3050, Sept. 12, 1968. [Washington, D.C.]: . 1968.