HERMAN HOLLERITH -- FORGOTTEN GIANT OF INFORMATION PROCESSING.
Columbia University Press NY 1982, first edition.
Columbia University Press NY 1982, first edition.
Assoc Computing Machinery, NY, March 1980, volume 23 number 3; pp141-196 + 34 pgs adverts.
ACM and The Computer History Museum NY 1997, 414 pages, full page color photographs/portraits; index, sources etc.