Bell Telephone Laboratories. (2001). Bell Laboratories Record. Bell Telephone Laboratories.
Cita Chicago Style (17a ed.)Bell Telephone Laboratories. Bell Laboratories Record. Murray Hill, NJ: Bell Telephone Laboratories, 2001.
Cita MLA (8a ed.)Bell Telephone Laboratories. Bell Laboratories Record. Bell Telephone Laboratories, 2001.
Precaución: Estas citas no son 100% exactas.