Black Book - AT&T (American Telephone & Telegraph Company): 1984. Bernstein Institutional Services LLC.
Cita Chicago Style (17a ed.)Black Book - AT&T (American Telephone & Telegraph Company): 1984. Bernstein Institutional Services LLC.
Cita MLA (9a ed.)Black Book - AT&T (American Telephone & Telegraph Company): 1984. Bernstein Institutional Services LLC.
Precaución: Estas citas no son 100% exactas.