APA (7th ed.) Citation

Bell Telephone Laboratories. Bell Laboratories record. [Bell Telephone Laboratories].

Chicago Style (17th ed.) Citation

Bell Telephone Laboratories. Bell Laboratories Record. [Murray Hill, N.J.]: [Bell Telephone Laboratories].

MLA (9th ed.) Citation

Bell Telephone Laboratories. Bell Laboratories Record. [Bell Telephone Laboratories].

Warning: These citations may not always be 100% accurate.