Castro, A. (2012). Water business gives Ayala highest returns on assets. Malaya Business Insight.
Citazione stile Chigago Style (17a edizione)Castro, Albert. "Water Business Gives Ayala Highest Returns on Assets." Malaya Business Insight 2012.
Citatione MLA (9a ed.)Castro, Albert. "Water Business Gives Ayala Highest Returns on Assets." Malaya Business Insight, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.