Bres, J. D., & Campbell, R. J. (1975). Temporary labour migration between Tonga and New Zealand. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Bres, Joris De, e R. J. Campbell. Temporary Labour Migration Between Tonga and New Zealand. International Labour Organization, 1975.
Citatione MLA (9a ed.)Bres, Joris De, e R. J. Campbell. Temporary Labour Migration Between Tonga and New Zealand. International Labour Organization, 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.