Siow, Y. C. (2011). Foreign labor in Singapore: Rationale, policies, impacts, and issues.
Citazione stile Chigago Style (17a edizione)Siow, Yue Chia. Foreign Labor in Singapore: Rationale, Policies, Impacts, and Issues. 2011.
Citatione MLA (9a ed.)Siow, Yue Chia. Foreign Labor in Singapore: Rationale, Policies, Impacts, and Issues. 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.