TY - BOOK TI - The Bell System technical journal VL - v. 12 (1933) UR - https://www.biodiversitylibrary.org/item/57710 PB - American Telephone and Telegraph Co CY - Short Hills, N.J., etc PY - 1933 SN - 0005-8580 N1 - Chemical abstracts | 1922-1983 | 0009-2258 --- Continued in Jan. 1984 by: AT & T Bell Laboratories technical journal. AU - American Telephone and Telegraph Company. KW - Communication KW - Electric engineering KW - Electronics KW - Periodicals KW - Science KW - Technology KW - Telecommunication ER -