APA

United States, . (1970). Conf CP bill: HR 13300. [Washington, D.C: .

Chicago

United States, . 1970. Conf CP bill: HR 13300. [Washington, D.C: .

Harvard

United States, . (1970). Conf CP bill: HR 13300. [Washington, D.C: .

MLA

United States, . Conf CP bill: HR 13300. [Washington, D.C: . 1970.