(Author), J. B. (1997). Contract labour in the British construction industry. International Labour Organization.
Citazione stile Chigago Style (17a edizione)(Author), Julian Birch. Contract Labour in the British Construction Industry. International Labour Organization, 1997.
Citatione MLA (9a ed.)(Author), Julian Birch. Contract Labour in the British Construction Industry. International Labour Organization, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.