Nisot, M. (1940). The protection of professional titles: I. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Nisot, Marie-Thérèse. The Protection of Professional Titles: I. International Labour Organization, 1940.
Citatione MLA (9a ed.)Nisot, Marie-Thérèse. The Protection of Professional Titles: I. International Labour Organization, 1940.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.