Não informado. (2019). Record. AT & T Bell Laboratories.
Style de citation Chicago (17e éd.)Não informado. Record. Murray Hill, NJ: AT & T Bell Laboratories, 2019.
Style de citation MLA (8e éd.)Não informado. Record. AT & T Bell Laboratories, 2019.
Attention : ces citations peuvent ne pas être correctes à 100%.