(1928). Vocational education in Russia from 1924 to 1927. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Vocational Education in Russia from 1924 to 1927. International Labour Organization, 1928.
Citatione MLA (9a ed.)Vocational Education in Russia from 1924 to 1927. International Labour Organization, 1928.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.