APA

United States, . (1989). The underclass: hearing before the Joint Economic Committee, Congress of the United States, One Hundred First Congress, first session, May 25, 1989. Washington: U.S. Government Printing Office.

Chicago

United States, . 1989. The underclass: hearing before the Joint Economic Committee, Congress of the United States, One Hundred First Congress, first session, May 25, 1989. Washington: U.S. Government Printing Office.

Harvard

United States, . (1989). The underclass: hearing before the Joint Economic Committee, Congress of the United States, One Hundred First Congress, first session, May 25, 1989. Washington: U.S. Government Printing Office.

MLA

United States, . The underclass: hearing before the Joint Economic Committee, Congress of the United States, One Hundred First Congress, first session, May 25, 1989. Washington: U.S. Government Printing Office. 1989.