Gaya APA

Paus, Y, P, I. (2015). Surat untuk lansia: Inspirasi menjalani hari tua dengan bahagia. Penerjemah: A. Widyamartaya. : The dignity of older people and their mission in the Church and in the world. 1998 : Letter of His Holiness Pope John Paul II to the Elderly. . Yogyakarta: Yogyakarta Kanisius.

Gaya MLA

Paus, Yohanes, Paulus, II,. "Surat untuk lansia: Inspirasi menjalani hari tua dengan bahagia. Penerjemah: A. Widyamartaya. : The dignity of older people and their mission in the Church and in the world. 1998 : Letter of His Holiness Pope John Paul II to the Elderly.". Yogyakarta: Yogyakarta Kanisius, 2015. Buku.