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  • × year_i:[1920 TO 1930}
  1. Sayers, W.C.B.: ¬A manual of classification for librarians and bibliographers (1926) 0.02
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    Footnote
    2nd ed. 1944. - 3rd. ed. 1955. - 3rd rev.ed. 1959. - 4th ed. 1967. - Vgl. auch 5. Aufl. von Maltby, A.