Putte, W. v. d. (1976). A pope for all ages. The Pius XII Guild.
Lua i Stíl Chicago (17ú heag.)Putte, Walter van de. A Pope for All Ages. Saint John, NB, Canada: The Pius XII Guild, 1976.
Lua MLA (8ú heag.)Putte, Walter van de. A Pope for All Ages. The Pius XII Guild, 1976.
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