Gaya APA

Bavel, T, J, V. (1980). Christians in the world, introduction to the spirituality of Augustine. . New York: Catholic Book Publ.

Gaya MLA

Bavel, Tarsicius, J., Van,O.S.A.. "Christians in the world, introduction to the spirituality of Augustine. ". New York: Catholic Book Publ, 1980. Buku.