Gaya APA

Fremantle, A. (1960). The papal encyclicals in their historical context, with an introd. by G.Weigel S.J., [4th pr.]. Penerbitan asli 1956. . [New York]: The new American library.

Gaya MLA

Fremantle, A.. "The papal encyclicals in their historical context, with an introd. by G.Weigel S.J., [4th pr.]. Penerbitan asli 1956. ". [New York]: The new American library, 1960. Buku.