Gaya APA

VI, P, P. (1969). The teachings of pope Paul VI (29-12-1967 - 18-12-1968) . : libreria editrice vaticana.

Gaya MLA

VI, Pope, Paul. "The teachings of pope Paul VI (29-12-1967 - 18-12-1968)". : libreria editrice vaticana, 1969. Text.