# BSTJ 2: 2. April 1923: Public Address Systems. (Green, I.W.; Maxfield, J.P.)

Bell System Technical Journal, 2: 2. April 1923 pp 113-142. Public Address Systems. (Green, I.W.; Maxfield, J.P.)

- Kind: Magazine
- Series: BSTJ 2: 2. April 1923: Public Address Systems
- Year: 1923
- Archive: [Internet Archive](https://archive.org/details/bstj2-2-113)
- Licence or status: none stated by the archive
- Who can read it: Tweens profiles and older (placed by Invisible Network from what the archive says)

[Read it](https://invisiblenetwork.ai/print/ia/bstj2-2-113/read)