Perroulaz, G. (2012). 1. Commerce. URI:https://journals.openedition.org/aspd.
Cita Chicago (17th ed.)Perroulaz, Gérard. "1. Commerce." URI:https://journals.openedition.org/aspd 2012.
Cita MLA (8th ed.)Perroulaz, Gérard. "1. Commerce." URI:https://journals.openedition.org/aspd, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.