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  • × year_i:[1920 TO 1930}
  • × language_ss:"e"
  1. Hertley, R.V.L.: Transmission of information (1928) 0.00 
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  2. Sayers, W.C.B.: ¬A manual of classification for librarians and bibliographers (1926) 0.00 
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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.
  3. Kaiser, J.: Systematic indexing (1926) 0.00 
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  4. Jevons, W.S.: ¬The principles of science : a treatise on logic and scientific method (1924) 0.00 
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  5. Fellows, D.: Library of Congress Classification vs. decimal classification (1925) 0.00 
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  6. Lotka, A.J.: ¬The frequency distribution of scientific productivity (1926) 0.00 
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