International Labour Office & ebrary, Inc. (2005). Safety and health in ports. International Labour Office.
Citazione stile Chigago Style (17a edizione)International Labour Office e Inc ebrary. Safety and Health in Ports. Geneva: International Labour Office, 2005.
Citatione MLA (9a ed.)International Labour Office e Inc ebrary. Safety and Health in Ports. International Labour Office, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.