Cooperative networks in Transylvania belonging to Hungary and Romania. Nation-building and modernization by cooperatives in Transylvania as part of Hungary (1867-1918) and Romania (1918-1940).: Nation-building and modernization by cooperatives in Transylvania as part of Hungary (1867-1918) and Romania (1918-1940). Lap Lambert Academic Publishing, Németország, Saarbrücken, 2016, 152. p.