The Bell System Technical Journal vol. 57 no. 2, February 1978, Common Channel Interoffice Signaling.
AT&T 1978, pp 221-477 inclusive, references, diagrams, photographs.
AT&T 1978, pp 221-477 inclusive, references, diagrams, photographs.
American Telephone & Telegraph Co, 1958; i-vi, pp 1091-1326, illus, photos, references.
American Telephone & Telegraph Co, NY, n.d., ca. 1952; 32 pages.
National Research Council Mathematical Tables and other Aids to Computation, IV, no. 1, January 1950.
IEEE 1972, 1973, ten individual issues, approx. 20 pages each issue.
Plenum Press, NY and London, 1972; 330 pages, Index.
Prepared by Bell Telephone Laboratories, Inc for Western Electric Co, Inc, New York, NY 1951; 792 pages.