Belau, D., & Budlender, D. (2006). An introduction to labour statistics in tourism. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Belau, Dirk, e Debbie Budlender. An Introduction to Labour Statistics in Tourism. International Labour Organization, 2006.
Citatione MLA (9a ed.)Belau, Dirk, e Debbie Budlender. An Introduction to Labour Statistics in Tourism. International Labour Organization, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.