Villegas, C. G. (2003). On constitutional amendment. IN Small talk [column]: Presidential vs. parliamentary form of government. Leyte Samar Daily Express.
Citazione stile Chigago Style (17a edizione)Villegas, Cesar G. "On Constitutional Amendment. IN Small Talk [column]: Presidential Vs. Parliamentary Form of Government." Leyte Samar Daily Express 2003.
Citatione MLA (9a ed.)Villegas, Cesar G. "On Constitutional Amendment. IN Small Talk [column]: Presidential Vs. Parliamentary Form of Government." Leyte Samar Daily Express, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.