Cita APA (7a ed.)

Villaroel, F. (2000). Philip II and the "Philippine referendum" of 1599. Unitas.

Cita Chicago Style (17a ed.)

Villaroel, Fidel. "Philip II and the "Philippine Referendum" of 1599." Unitas 2000.

Cita MLA (9a ed.)

Villaroel, Fidel. "Philip II and the "Philippine Referendum" of 1599." Unitas, 2000.