Gaya APA

Augustinus, S. (1955). The problem of free choice, transl. and annotated by M.Pontifex O.S.B. : De libero arbitrio. . Westminster Md dsl: The Newman Press dsl.

Gaya MLA

Augustinus, S.. "The problem of free choice, transl. and annotated by M.Pontifex O.S.B. : De libero arbitrio. ". Westminster Md dsl: The Newman Press dsl, 1955. Buku.