Cita APA (7a ed.)
(1979). Productivity indexes for selected industries: 1979 edition. U.S. Department of labor.
Cita Chicago Style (17a ed.)
Productivity Indexes for Selected Industries: 1979 Edition. Washington: U.S. Department of labor, 1979.
Cita MLA (9a ed.)
Productivity Indexes for Selected Industries: 1979 Edition. U.S. Department of labor, 1979.
Precaución: Estas citas no son 100% exactas.