Gaya APA

Aquitanus, P. (1970). Grace and free will (de Gratia Dei), transl.by J.R.O'Donnell C.S.B.,(repr) - The Fathers of the Church, 7 Cet.pertama 1949 . Washington: CathUnivof America Press.

Gaya MLA

Aquitanus, Prosperus. "Grace and free will (de Gratia Dei), transl.by J.R.O'Donnell C.S.B.,(repr) - The Fathers of the Church, 7 Cet.pertama 1949 ". Washington: CathUnivof America Press, 1970. Buku.