Arroyo, G. M. (1980). The impact of tourism: A report : data availability. Philippine Center for Economic Development.
Citazione stile Chigago Style (17a edizione)Arroyo, Gloria M. The Impact of Tourism: A Report : Data Availability. Quezon City: Philippine Center for Economic Development, 1980.
Citatione MLA (9a ed.)Arroyo, Gloria M. The Impact of Tourism: A Report : Data Availability. Philippine Center for Economic Development, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.