Man, H. d. (1922). Workers' education in Belgium. International Labour Organization.
Cita Chicago Style (17a ed.)Man, Hendrik de. Workers' Education in Belgium. International Labour Organization, 1922.
Cita MLA (9a ed.)Man, Hendrik de. Workers' Education in Belgium. International Labour Organization, 1922.
Precaución: Estas citas no son 100% exactas.