APA(7版)引用形式

John Paul II, P. (2013). Letter of Pope John Paul II to the elderly (1999). Boletin Eclesiastico de Filipinas.

Chicagoスタイル(17版)引用形式

John Paul II, Pope. "Letter of Pope John Paul II to the Elderly (1999)." Boletin Eclesiastico De Filipinas 2013.

MLA(9版)引用形式

John Paul II, Pope. "Letter of Pope John Paul II to the Elderly (1999)." Boletin Eclesiastico De Filipinas, 2013.

警告: この引用は必ずしも正確ではありません.