Modern machine calculation with the Facit calculating machine, model Lx
By: by H. Sabielny ; Translated and revised by  L. J. Comrie and H. O. Hartley.
Contributors: Comrie, L. J. 1893-1950.; Hartley, H. O.
Publisher: Scientific Computing Service, ltd.
Published: 1939
Place of publication: London
Language: eng
Number of pages: 74
Subjects: Calculators.
Other titles: Machine calculation.; Facit calculating machine, model Lx.
Notes: "Mr. Sabielny's original text ... was published by Aktiebolaget Facit, Atvidaberg, Sweden."--Translators' pref.