Simbulan, R. G. (2018). The historic senate vote of 16 September 1991: Looking back and looking forward twenty-five years after. Philippine Studies : Historical and Ethnographic Viewpoints.
Citazione stile Chigago Style (17a edizione)Simbulan, Roland G. "The Historic Senate Vote of 16 September 1991: Looking Back and Looking Forward Twenty-five Years After." Philippine Studies : Historical and Ethnographic Viewpoints 2018.
Citatione MLA (9a ed.)Simbulan, Roland G. "The Historic Senate Vote of 16 September 1991: Looking Back and Looking Forward Twenty-five Years After." Philippine Studies : Historical and Ethnographic Viewpoints, 2018.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.