Villaroel, F. (2000). Philip II and the "Philippine referendum" of 1599. Unitas.
Chicagoスタイル(17版)引用形式Villaroel, Fidel. "Philip II and the "Philippine Referendum" of 1599." Unitas 2000.
MLA(9版)引用形式Villaroel, Fidel. "Philip II and the "Philippine Referendum" of 1599." Unitas, 2000.
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