APA (7th ed.) Citation

Bell Telephone Laboratories, inc. Technical Information Libraries. Index to current technical literature. Bell Telephone Laboratories.

Chicago Style (17th ed.) Citation

Bell Telephone Laboratories, inc. Technical Information Libraries. Index to Current Technical Literature. New York: Bell Telephone Laboratories.

MLA (8th ed.) Citation

Bell Telephone Laboratories, inc. Technical Information Libraries. Index to Current Technical Literature. Bell Telephone Laboratories.

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