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78518955
78518955
http://www.worldcat.org/oclc/78518955
Report on automation and mechanisation in the PTT services. - Fritz Gmür, Report on the reduction of hours of work in the PTT services. 16th Postal, Telegraph and Telephone International Congress, 15th to 20th September 1957 in Florence [...].
sameAs
78518955
http://www.worldcat.org/oclc/78518955