por Plasmans, Joseph [editor] | Francia. Ambassade (Holanda) | Katholieke Hogeschool. Office for International Relations.
por Taubman, Paul [editor] | Crockett, Jean [editor] | Blume, Marshall E [editor].
por Lange, Oskar, 1904-1965 [autor] | Lange, Oskar, 1904-1965. Wstep do ekonometrii | Banasiński, Antoni [colaborador] | Lepa, Eugene [traductor] | Potocki, Andrzej [traductor].