Cita APA (7a ed.)
(1977). Statistical abstract of the united states 1977 (98th Ed.). U.S. Bureau of the Census.
Cita Chicago Style (17a ed.)
Statistical Abstract of the United States 1977. 98th Ed. Washington: U.S. Bureau of the Census, 1977.
Cita MLA (9a ed.)
Statistical Abstract of the United States 1977. 98th Ed. U.S. Bureau of the Census, 1977.
Precaución: Estas citas no son 100% exactas.