Lenin, Vladimir I., author
Buku Teks
Axmacher, Dirk
Frankfrut : Fischer Taschenbuch Verlag, 1974
Buku Teks
Sombart, Wwerner
Duncker & Humblot, 1922
Buku Teks
Sombart, Wwerner
Duncker & Humblot, 1922
Buku Teks
Sombart, Werner
Duncker & Humbolt, 1922
Buku Klasik