Cita APA (7a ed.)
(1980). Bargaining calendar 1980. U.S. Department of labor.
Cita Chicago Style (17a ed.)
Bargaining Calendar 1980. Washington: U.S. Department of labor, 1980.
Cita MLA (9a ed.)
Bargaining Calendar 1980. U.S. Department of labor, 1980.
Precaución: Estas citas no son 100% exactas.