:

  •  
                                                          

    ( 50 ):





    ()

    ()
    (
    ()



    ()


    ( )



    ()

    ()

    ( 1972 . )
    (1826-1901)


    ( 1946 )




    - 1939:1) 23 (" - "); " " ( -
    - 1920
    - 1939-40



    ( 1977 - )






    (Sauvy) (1898-1990)
    ( )
    ()




    (1847-1917)
    (1775-1857)
    (Akron)
    :