Gutiérrez, M. (2013). Gold prices: Analyzing its cyclical behavior. Universidad de Antioquia.
Citazione stile Chigago Style (17a edizione)Gutiérrez, Martha. Gold Prices: Analyzing Its Cyclical Behavior. Universidad de Antioquia, 2013.
Citatione MLA (9a ed.)Gutiérrez, Martha. Gold Prices: Analyzing Its Cyclical Behavior. Universidad de Antioquia, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.