Bell Telephone Laboratories, reprint of paper published in The Bell System Technical Journal vol. VI, July 1927; separately paginated Monograph, 19 pages.
Condition: Very Good, light blue heavy paper covers, stapled binding, softcover, 3-hole punched at margin, secure binding, toned along outer margins; pages clean and unmarked.
Categories: 1950's computers and computing, Databooks, Handbooks, Manuals, General microcomputer and Misc. manufacturers, Electronic and Electrical Engineering, Hardware, Human-Computer Interaction, Mathematics, Technical Journals, Proceedings, Conferences, Bell System Technical Journals, BSTJ pre-1940