Gaya APA

Vries, P, P, D, , &, J, F, &, A, L. (1975). Communal discernment, new trends. . Roma: CIS.

Gaya MLA

Vries, Piet, Penning, De, , &, J.C., Futrell, &, A., Lefrank. "Communal discernment, new trends. ". Roma: CIS, 1975. Buku.